Home  :  The Caves  :  Beneath The Waves  :  Miscellaneous  :  Contact
 

Mendip Caving - Back

 

The Mendip Hills lie in south west England just to the south of Bristol. They are an eroded mountain range of carboniferous limestone overlying old red sandstone. They stretch from the north somerset coast at Brean Down as an west to east plateau rising to a maximum height of 300 metres or so. The melt water from previous ice ages has incised some deep valleys into the flanks of the hills including the world famous Cheddar Gorge. There are few surface streams on the plateau and most that exist rapidly sink into the ground in swallets which provlde an entrance to the underworld of Mendip. Much of the water emerges at two main resurgences, one at Cheddar and the other at Wookey Hole where diving exploration in the subterranean waters of the Axe has penetrated as far as the 25th Chamber and beyond to a depth of 90 metres. The waters of Wookey Hole are fed from several cave systems near Priddy including Swildons Hole and St. Cuthbert's Swallet,featured below.

 

The big resurgence at Cheddar is fed by the cave systems in the Charterhouse area and include GB cave, Manor Farm Swallet, Longwood Swallet and Upper Flood Swallet which recently has fulfilled it's promise as being one of the most significant caves in the area.

 

On the eastern side of the Mendips are the caves of Fairy Cave Quarry and Stoke Lane Slocker.

 

Swildons Hole


Below are some images of Swildons Hole near the village of Priddy. The longest cave currently known on the Mendip Hills it winds under the village of Priddy ending 500 feet below the Victoria Inn. It was first entered just over a century ago. The cave consists of a long winding stream passage above which is a network of fossil passages. New discoveries are still being made occasionally by digging blasting and diving. The entrance passage in late 2009 has become extremely unstable and the cave has been temporarily closed.

The entrance

 

 

Between the Forty Foot and Twenty foot pots

 

Barnes Loop

Far end of the Black Hole Series

Birthday Squeeze on the Round Trip

Northwest Stream Passage

The Landing in Swildons Two

Sump3

Archway in Swildons Four

Downstream from Sump 3

Near Keyhole

keyhole section

Blue Pencil chain

 

 

Just downstream from the chain

 

Tate Gallery

In the Tate Gallery, Swildons Four

In the second Double Trouble Formations near Birthday squeeze Passage near the final duck intoVicarage Passage  

Rift passage looking back towards U-tube of Renascence Series

The crawl into New Renascence

Bedding passage Renascence Series

Main passage Renascence Series

Calcited boulders in a chamber containing old maypoles Renascence Series

View back to maypole chamber Renascence Series

Emerging from the Stoops Renascence Series

Crawl near Black Chamber Renascence Series

Near Black Chamber Renascence Series

Near Black Chambe Renascence Series r

         

Black Chamber Renascence Series

Black Chamber Renascence Series

The black stal in Black Chamber Renascence Series

Resting before Sump Six

Start of the Damp Link in Six

Swildons Seven approaching the Beehive

Swildons Seven looking down passage to Beehive

The Beehive

The Beehive

Ancient broken stalactite curtains by the Beehive

Climb up into Sump Six Bypass

Six Bypass Climb

Downstream Sump Seven bypass

Downstream end of Sump Seven

First Chamber in Eight

First Chamber in Eight

First Chamber in Eight

Streamway in Eight

Streamway in Eight

Streamway in Eight

Constriction in Eight

Approaching Sump Eight

Near Sump Eight

Climb into Eight bypass

In Eight bypass

Looking up into Thrutch Tube in Swildons Nine

Sump Nine chamber looking downstream right hand side

Sump Nine Pool left hand side

Sump Nine Pool left hand side

 

Between Sumps 6 and 7

Start of Sump 9

Entrance crawl to |Pirate Chamber

The Scalloped tube off Shatter Passage

 

Shatter Chamber

 

 

 

North Hill Swallet

 

This small cave system was blasted open over a five year period in the late '60's into the early1970's and has received some interest again in the last few years. It is rarely visited being overshadowed by the proximity of the extensive Eastwater Cavern. It lies at the end of a shallow dry valley which is quite boggy and lies only 100 yards or so from the Wessex CC headquarters behind Eastwater Farm. Care has to be taken when rigging the cave that it is made cow proof as itchy heifers have been know the dislodge the belay!

Beyond a surprisingly impressive entrance rift a series of blasted crawls leads via a sporting free climbable pitch to a section of natural vadose streamway ending in choked passage carrying a small stream. There are a few formations here and there.

The entrance

Looking down the shaft. This opens into a large rift - total depth 15 metres+.

Near the top of Rumble plonk pitch

Halfway down RP pitch

Lower section of RP pitch

Crawl into the Master's Cave

Walking passage!

Formations and Ken Passant

Formations

Formations

Start of the vadose canyon

In the vadose canyon

Stalagmite flow

Ken and bang wire

Almost the bitter end

Eastwater Cavern

 

Eastwater Cavern lies in a swallet depression only a few hundred metres from St. Cuthbert's Swallet and a shorter distance east of North Hill Swallet. It is probably one of the first major Mendip caves to be entered by a planned dig. In 1902 a team of labourers hired by Herbert Balch began excavations which led to the cave being opened. The entrance series consists of a massive boulder ruckle that's shifted a number of times since the cave's discovery resulting, on one occasion nearly 50 years ago, in a fatality when a scout was hit by a boulder.. After this a marked route was established avoiding the original route into the boulder chamber at the base of the ruckle. Over the last 20 years cavers have begun to use the original route again although the final section remains daunting and is known with characteristically robust caver's humour as the Woggle Press. There is no single streamway in the cave and it consists of a series of steep bedding passages running both across the strike and downdip. Many passages are constricted and the bypass to the Boulder Chamber route is the notorious Traverse - a constricted and strenous slide across a steeply sloping bedding plane. There are several routes and round trips in the cave and although at first appearance it appears devoid of stalactite formations there are in some remote sections some beautiful formations .In the early 1980's the cave had something of a renaissance when the constricted West End series was discovered and explored doubling it's length. A small but dedicated digging team recently achieved a connection from the entrance passages to the base of the West End series but this remains a thin man's trip. The cave is still actively being dug despite the strenous nature of a trip to the bottom.

Current Entrance

Caving humour inside the entrance at the start of the ruckle

In the ruckle

The Traverse

Tony Boycott in the Canyon

Angie Glanvill and Sue Durston near the Crossroads

Lower Canyon

Angie Glanvill at base of Dolphin Chimney

Dolphin Pitch

Second Vertical

The Bold Step

Thirteen Pots

The late Tony Jarratt at the top of Hard Rain Aven

Crawl into West End Series

Angie Glanvill in a constriction in the West End series

Greek Street in West End Series

Regent Street

Regent Street

Regent Street

Regent Street

Regent Street

Regent Street

Regent Street

Regent Street

The Termite Hills at the end of Regent Street

   
     

 

St. Cuthbert's Swallet

 

In 1953 the longest cave system yet entered as a result of a systematic dig was discovered - something like 6 km long and 120 metres deep.The area known as the Mineries, now a nature reserve, was a scene of grimy industrial activity in the late nineteenth century when the St. Cuhberts leadworks were belching smoke and fumes over the countryside around Priddy. They recycled the old Roman leadworkings - lead being available without deep mining on the Mendips. Even today the ground hereabouts is poisoned by lead. A celebrated law suit came about as a result of all this activity. The water sinking underground at the Mineries is next seen at Wookey Hole only a mile or two away. The resultant pollution from the lead works interfered with the activities of the paper mill at Wookey and the end result of this flurry of legal activity was an injunction on the owners of the lead works preventing them from contaminating the streams sinking underground nearby. This injunction still stands today and has directly resulted in the protection of St. Cuthberts Swallet from the casual vandalism to calcite formations seen in so many other Mendip caves. Access to the cave is controlled by the Bristol Exploration Club whose headquarters are only a hundred metres or so from the cave and whose members were responsible for discovering and exploring the system.

The cave is hard to describe! Although there is a stream passage that can be followed right the way to the end of the system, there have been numerous points of engulfment of surface streams over the aeons. This has led to a multitude of inlet passages above the main streamway. The central area of the cave has several large chambers often filled with large boulders and route finding can be most confusing. Tucked away in various nooks and crannies throughout the system are magnificent calcite formations both large and small such as the 30+ metre high Cascade and Curtain Chamber and beautiful nests of cave pearls and clusters of helictites. Challenging climbs and squeezes render the cave very sporting as well.

The most awkward part of the cave is the notorious entrance rift, a narrow 10 metre deep shaft easily slithered down but providing a strenuous struggle out. To add to the fun the entrance stream has to be diverted away from the entrance to allow the rift to be descended safely. Woe betide you if the dam overflows or there is heavy rain

Since the cave's discovery there has been a leader system. Would be leaders, like taxi drivers, have to display their knowldege of the standard routes through the cave.

These photographs are a selection from the many I have taken in the cave over the last 30 years.

       

The Entrance pipe

The entrance rift

Top of Arete Pitch

Climbing the Arete pitch

Top of Pulpit Pitch

Starting the descent of Pulpit Pitch

 

Martyn Grass descending Pulpit Pitch

Pulpit Pitch in dry conditions

Martin Grass on Pulpit Pitch - again

     

Pulpit Pitch

The rift below Pulpit Pitch

 

 

Gour Passage Pitch

Gour Passage

Water Chute

The cascade into Traverse chamber

Passing the Choke

Climb into Bypass Passage just beyond the choke

 

Streamway just below Bypass Passage

   

Streamway beyond the choke

Graham Wilton Jones in Gour Passage (below Stal Pitch)

     

Streamway beyond the choke

Gour passage

Sewer Passage

Climbing the chain into Gour Hall

Looking up Gour Hall

Rift beyond Gour Hall

Near of Gour Hall Rift

Just before the old sump

Crawl (old sump)

Between Gour Hall and Sump One

Dam upstream of Sump One

By the sump

Emerging from the sump

     

 

Just beyond Sump 1

 

Just beyond Sump 1

 

In St. Cuthbert's 2

 

In St. Cuthbert's 2

 

In St. Cuthbert's 2

The pot near Sump 2

Ledge Pitch

Wire Rift

Fixed ladder into Mud Hall

Entering Boulder Chamber

View down Boulder chamber

Entry to Upper Traverse Chamber from Lower Mud Hall

Curtain at base of Upper Traverse Chamber

View down Upper Traverse Chmber

View up Maypole Series

Bottom end of Harem Passage

In the Railway Tunnel

Cascade at end of Railway Tunnel

Another view of the Cascade

Pearls near the Fingers

   

Passing the Fingers from the Railway Tunnel side

Fingers Traverse from the Everest Passage side

Curtain chamber

Curtain in Curtain chamber

Everest Passage

Approaching the Fingers from Everest Passage

Curtain with cemented fill in Railway Tunnel

In the Rabbit Warren

First Stal Bank

Second Stal Bank

Emerging from Rabbit Warren Extension

Entering High Chamber from Upper Traverse Chamber

Stafford's boulder problem

 

Sally Glanvill in Curtain Chamber

The curtain in Long Chamber

Formations outside Curtain chamber

In Catgut Series

Traversing in Catgut Rift

Totem pole stal in September Chamber

Central September Chamber

The Balcony in Sepember Chamber

Straw chamber

Bell chamber

Marble Hall

 

Stal barrier in St. Cuthbert's 2

St. Cuthbert's 2

St. Cuthbert's 2

St. Cuthbert's 2

 

St. Cuthbert's 2

Traverse down to bottom of Maypole series

 

Traverse down to bottom of Maypole series

Traverse down to bottom of Maypole series

Pulley Pitch

Stal just beyond head of Pulley Pitch

Manganese stained stal

Maypole Series

Maypole Series

 

Maypole Series

Eroded stalagmite false floor

Eroded stal Maypole Series

Maypole Series

Maypole Series

Maypole Series

Maypole Series

Near the highest point in Maypole Series

     

 

Wookey Hole

Often known as Wookey Hole Cave the word wookey is a corrupted ancient dialect name for cave so there is a bit of overstatement here! The rising of the River Axe near the city of Wells has attracted it's share of myth and legend, and, as is often the case there are elements of truth in the tales. The dry parts of the cave have been accessible for all recorded history and in fact until the rising was dammed to provide a leat to feed the paper mill, it was possible,to reach the fourth chamber now flooded and sealed from the Third Chamber. The cave has been open to the public for nearly a century and ownership has passed through a number of hands over the years. It is currently owned by Gerry Cottle whose origins lie in the circus field. A major development for the show cave and for cavers was the mining of a tunnel into and out of the large Ninth Chamber in 1976 allowing divers to make this a convenient exploration base. Few people know that one of the factors enabling the tunnels to be constructed was the discovery by Welsh cave diver John Parker of a link to the surface from an ascending passage in Chamber Nine. This allowed a very accurate survey to be made enabling precision tunnelling from the valley outside.

Beyond the Ninth Chamber several hundred metres of flooded cave passage link the dry sections notably Chambers 20, 22, Edmunds Chamber, Chamber 23, the extensive Chamber 24 and the Chamber of Gloom that is Wookey 25. Beyond here the cave has been explored for a considerable distance to a depth of 90 metres. A superb DVD describing Wookey and the history of its diving exploration to the present day can be obtained from Gavin Newman who made the film.

I have done a limited amount of diving exploration in Wookey but am proud to have made a small contribution to the knowledge of this iconic cave system.

The entrance pool with the leat in the foreground

Divers entering the resurgence

A diver in the narrow boulder floored resurgence passage

 

The First Chamber

     

Divers in the Third Chamber

 
     

 

 

Upper Flood Swallet

The best introduction to this relatively little known Mendip cave is a rather prophetic article I wrote for the Belfry Bulletin 20 years ago.

"Originally known as Blackmoor Flood Swallet this cave was one of the bonuses of the 1968 flood that washed away the Forty and the road at Velvet Bottom. The heavily choked passage was originally explored by the MCG and subsequently dug by both Willie Stanton and that club whose headquarters lie conveniently within walking distance. Although the cave promised much, lying at the head of the Velvet Bottom catchment area near the limestone/shale boundary with a potential 700 feet of vertical range, it became clear that siege tactics were required. The once roomy ancient stream passage was choked with fill, stal obstructions and lead tailings. It has taken nearly 17 years of digging, blasting, wall construction and back filling to gain access to the present cave. It has paid off for the MCG who now have in their grasp potentially one of the deepest caves on Mendip, if not the country, and despite the length of the known cave the depth potential still remains.

The entrance lies on land controlled by the county council which is why access arrangements are fairly tight. Parties of four including a MCG leader are allowed down but due to the nature of the cave overcrowding and damage to formations can be a risk if more than one or two groups are down the cave. My interest in the cave was photographic and it must be said that it lends itself to photography magnificently.

A concrete barrel shaft drops two metres into a small chamber from which a flight of steps leads to a rift passage. A further short drop intercepts a small stream. Upstream can be followed for a short distance while downstream continues as a stooping or crawling size passage on a very shallow gradient. At various points evidence of the Intensive excavations can be seen In the form of walls. Malcolm Cotter tells me that in places the passage has been back filled to a depth of 1.5 metres or more. Eventually after 275 metres or so the roof lowers to a muddy grovel partially full of water. However, the enthusiasm of the explorer is more than stimulated by the draught of cold air and the sound of running water. A wriggle up a mud covered stal slope and a squeeze through stal curtains leads to one of the most dramatic entrances on Mendip.

One stands (carefully avoiding the numerous straws above ones head) on a big stal slope in a roomy well decorated chamber. On one's right a large stream gurgles out of the wall, crosses the chamber~ and splashes off at bottom left into the enticing darkness. This is Midnight Chamber, the breakthrough point.

Upstream the passage is a low crawl to a sump whilst downstream the cave continues as a crawl. Here the damage to stal formations is most evident and I suspect that although this is by far the most vulnerable part of the cave that much of the destruction was caused by the excited first explorers. This is hardly surprising because the passage consists of a crawl about 1.5 metres high and 1 metre wide along the walls of which are arranged a mass of stals on a false floor whilst the roof is studded with a forest of stalactites. Delicate crawling in the stream leads to a boulder obstruction through which one gingerly worms into the next section.

Here the streamway widens a little but the roof remains low. Some attractive stal bosses can be seen on ledges on the left and there is enough exposed limestone to observe the nature of the rock. It is extremely shaly and it seems to me that the best formations can be seen in the shaly sections. Stal formations and shale seem to go together – does anybody know why? Anyone also cannot fail to notice the black marks on many of the stalagmites. Closer examination shows the marks to have legs and that they are the remains of dead flies. Presumably flies hatch from eggs carried in by the stream on rotting vegetation and then die from lack of food. Incidentally there is little evidence of flood damage to the formations which suggest the streamway can cope with large volumes of water of that the ingress of water is limited. Now that there is an excavated entrance to the cave a repeat of the 1968 floods could destroy the decorations and the MCG have already thought in terms of constructing some kind of flood gate to the entrance. The streamway turns a corner passing a massive stal bank on which are arranged numerous numbers of totem pole stalagmites, some at angles suggesting breakage and re-cementing. The straws in this section are some of the best on Mendip. Just before the stream dives into a bedding crawl one can see clumps of stal on the floor. If one looks closely one can see straws that have been formed, broken off, and have been re-cemented before the floor they were on was broken off, and washed into the stream. I must say that this suggests to me that the cave is pretty ancient!

Beyond the bedding crawl one enters the second largest chamber which is really a washed out shale bed. Some nice false flooring remains here. A squeeze under boulders at stream level leads to another bedding passage which suddenly develops as a rift at a corner. Here one can walk upright for only the second time since leaving Midnight Chamber. This state of affairs doesn’t last long because another crawl looms up. Here the roar of a waterfall can be heard but disappointment soon supervenes as the stream is found to drop 3 metres down a narrow slot into a low sumped-up crawl which has not been passed since I last visited the cave, just before Christmas.

All is not lost however for above the waterfall is a short climb into a small decorated chamber. A low excavated crawl leads to the current terminus – a tube filled with stal false flooring and mud. It is possible to gaze into the promised land beyond and feel the hint of a draught. The spoil heap in the chamber has been decorated with examples of cave art ranging from the obscene to the ingenious. At the end of the cave one is less than 30 metres below the entrance with most of the depth potential of the system unrealised. God knows what will happen to the pretty bits if the system gets really massive – hence my initial statement."

In September 2006 after 20 years of digging through several obstacles the way on was located into what has been dubbed the Blackmoor Master Cave. The most accurate description at the time of writing can be obtained from the Mendip Caving Group website but things are changing all the time. The images presented here were made in 1986 just after the cave was first entered.

Tony Knibbs entering Midnight Chamber

Midnight Chamber

Jim Durston admires a straw in the streamway

Botryoidal stalagmites

Angie Glanvill in the streamway

Totem pole stalagmites

   

 

Midnight Chamber

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

Streamway

 

Walking size streamway

 

 

Stal in the old terminal chamber where the stream first disappears

 

The first dig at the end of the cave

Julie Hesketh (MCG member and one of the first two people into the 2006 extensions)in Golden Chamber. Photo by Philippa Glanvill

Crystals on a ledge in Golden Chamber (Photo Hesketh/Glanvill)

 

Crystal Pool in Golden Chamber (Photo Hesketh/Glanvill)

 

 

In the choke. Photo by Philippa Glanvill

Easy Squeeze, one of the squeezes in the choke leading to the 2006 extensions.Photo by Julie Hesketh

Streamway near Royal Icing (Photo Hesketh/Glanvill)

Streamway near Royal Icing (Photo Hesketh/Glanvill)

Entrance to Neverland. Photo Philippa Glanvill

By the start of Neverland. (Photo Hesketh/Glanvill)

Julie Hesketh admiring white stal at the entrance to Neverland Photo by Philippa Glanvill

 

Longwood Swallet

Excavated by pupils of Sidcot School this system lies at the head of the Longwood Valley between Manor Farm Swallet and the Gruffy Ground area that contains Charterhouse Cave and GB Cavern. The cave was entered just at the end of the second world war but the constricted entrance passages including the infamous Letter Box ensured it remained relatively unpopular until the discovery of the main streamway, dubbed August Hole, three years later. Fifteen years or so after this a dug link enabled cavers to take alternative routes to the main streamway. It is one of the deepest caves on Mendip although the final passage is tight and extremely flood prone. There have been two fatalities over the years, one in the entrance chimney when a young woman died of hypothermia in wet conditions and another in the streamway below Main Chamber when a boulder fall caused a death.

After the constricted entrance series two routes unite at Swing Pitch which leads down Fault Chamber, a passage very like those found in some caves of Assynt in Scotland. At the base of Fault Chamber one can walk upstream through some of the largest passages to be found on Mendip or journey downstream through well decorated passage to a lofty rift and final descent into the constricted Renolds Passage.

The entrance blockhouse

Peter Glanvill in the Letterbox (photo by Pete Rose)

 

The traverse and climb into Longwood Main Chamber

Longwood Main chamber

Swing Pitch

Fault Chamber with Swing Pitch in the distance

Fault Chamber

Side grotto off Fault Chamber

High level grotto off Fault Chamber

Lower end of Fault Chamber

Climbing out of the streamway

Upper Gallery

Upper Gallery

Upper Gallery

Streamway

Streamway

Climb in streamway

Cascade in streamway (taken same moment as last photo)

Traversing in the Great Rift

Great Rift

Final streamway

Final streamway

 

Silhouette in the streamway

Cascades in the streamway

Graham Wilton-Jones in the streamway

Streamway near the Oxbows

 

Manor Farm Swallet

This is the longest system to be found in the last 30 years. The original swallet was dug for several years before a successful breakthrough in the late 60's. Unfortunately the unstable entrance collapsed before the cave could be explored. A shaft was excavated through solid rock to intercept this passage but the floods in 1968 revealed the cave's promise when a large 10 metre deep collapse occurred only yards from the shaft. This was filled with scrap including some old cars and a tunnel blasted from the base of the excavated shaft to intercept the cave revealed by the collapse. No further digging was required to explore the rest of this deep and sporting system. Unfortunately the cave, at times, is heavily polluted by farmyard waste, making the trip a smelly and unhygienic experience. Experienced cavers can bottom the system with no tackle at all although a safety rope on the 15 metre deep entrance shaft is obligatory. In places the cave is well decorated and at the bottom, large passage in the form of NHASA gallery is entered. My friends Pete Rose and Nick Chipchase were instrumental in first entering this passage having serendipitously joined the diggers on the breatkthrough trip! A dig at the bottom of the system has broken into new passage (2010).

 

Looking up the blasted entrance shaft

 

 

 

Curtain Chamber

 

Curtain Chamber

 

 

 

 

 

 

 

 

 

Main Passage

Traversing

Main Passage

       
 

In the streamway

 

Sally Glanvill in the streamway

Sally Glanvill in the streamway

In the streamway

Fluted Pots

Climbing the Fluted Pots

Jason Pain at the Fluted Pots

 

In the streamway

Keith Pearson negotiating Albert's Eye

 

Albert's Eye and Dean Perry passing it

 

Angie Glanvill on a cascade

 

Dean at the entrance to the maypole series

In the only significant inlet passage

Dean Perry climbing cascades

A climb in the streamway

Entry point to NHASA Gallery

Squeezing into NHASA gallery

 

Near entry point to NHASA Gallery

 

Keith Pearson in NHASA Gallery

 

Entering NHASA Gallery

Looking up NHASA Gallery

NHASA Gallery

NHASA Gallery

NHASA Gallery

NHASA Gallery

Lower end of NHASA Gallery

In the Terminal Rift

Terminal Rift

 

Archway before Florence's Bathtub

 

The terminal stream sink

 

Charterhouse Cave

A small stream sinks into a Swallet a couple of hundred metres east of GB cave. Early excavations entered Read's Grotto but explorers found no negotiable route onwards. Sidcot School and the late Dr. William Stanton dug at a location close to the stream sink and entered a small system known as Charterhouse Cave but it was in the early 1980's that WCC members principally Alison and Pete Moody found a way into the system proper. Initially very constricted, the stream passage gradually enlarges and passes through a large muddy chamber (Splatter Chamber) containing evidence of visits by miners in the past. The passage originally ended in a large choke just beyond the spectacularly big Citadel from which one ascending passage named Chiaruscuro leads off. Although very close to GB there are no obvious connections between the caves although they are hydrologically linked. The cave ended in a draughting boulder choke just beyond the beautiful Grotto of the Singing Stal. This choke lies under the big surface feature known as the Great Swallet. Digs were undertaken by UBSS at Great Swallet (encountering human remains) and also at the draughting choke inside the cave. The choke dubbed Chill Out Choke was a major dig and it has taken a quarter of a century of fitful digging and the portering of vast amounts of cement into the cave before a breakthrough was made 2 years ago. The cave drops steeply from the breakthrough point in some well decorated passage before, just beyond an unpleasant constriction known as the Narrows, a short pitch drops into much larger passage where a stream enters from the roof. The stream has been dye tested and is that last seen in GB cave. The cave continues to descend and has become the deepest on Mendip with a fossil series near the sump offering prospects of connections to other nearby systems such as Rhino Rift.

 

     
 
       
       
   

 

GB Cave

This cave and its companion system Charterhouse Cave are in the Gruffy Ground nature reserve in Central Mendip. GB, named after its discoverers, was first entered in 1939 and a major extension made in 1966. The water from this cave emerges in Cheddar Gorge. The cave is notable for having the biggest passages and chambers on Mendip. The Great Chamber discovered in 1966 is very well decorated as is the neighbouring Bat Passage.

Bat Passage

Bat Passage at point of entry

central Bat Passage

Bat passage view

Stalactites

Stalactites

Pillars at top of Great chamber

Formations in Great chamber

Hanging death in Great chamber

Large Stalactite in Great Chamber

   

Caves in Cheddar Gorge

 

Cheddar Gorge is one of the most famous natural features in Britain. It is thought to have been carved by meltwater subsequent to the last ice age although at one time theory had it that it was a huge collapsed cavern. It is still in the process of erosion, threatening tourists and their vehicles. Many attempts have been made to stabilise the cliffs but to reverse a natural process is impossible and most efforts are now directed towards damage limitation. The lofty cliffs are a challenge to rock climbers, and more recently, base jumpers.

 

From the speleological point of view the Gorge has been a source of frustration. The second largest resurgence on the Mendips emerges just below Gough's show cave to leave Cheddar as the River Yeo. Unlike Wookey the main resurgence is solidly choked with boulders. Downstream access to the underground river in Sayes Hole was possible but the underwater passages were found to be too constricted for upstream progress. Similarly the fossil resurgence cave discovered by Gough in the 19th century allowed cavers access to a roomy network of passages but at no point did there seem to be any way into the underground river below the cave. The Skeleton Pit , a flooded shaft near the entrance, was dived and ended in an impassable constriction. Deeper inside the cave a large boulder chamber was found to flood in wet weather and many cavers concluded that the unseen streamway must be constricted.

 

All this started to change in 1980 when the late Martin Bishop led a small team of cavers and the Welsh cave diver Martyn Farr to a sump he had found in a side passage in Gough's Cave. Faulty equipment and the constricted nature of the sump deterred Farr from making a really determined nature to push it to a conclusion. The sump pool was at the bottom of a muddy rift and was not much bigger than the diver entering it so that visibility was immediately reduced to zero. It then descended as a narrow rift for an indeterminate depth. It was to be another five years before another diver Richard Stevenson was persuaded to dive there by a caver who had rediscovered the sump. Richard was unaware of the pool's reputation until the night prior to the dive. He descended the unpleasantly narrow rift, extremely worried about his return. and just as he was about to bale out found one foot had become cold and was waving about in open space. To his amazement he had dropped into the main Cheddar streamway - and far from being constricted it was 3 or 4 metres in diameter. Subsequent exploration took Rich and his fellow divers including Rob Harper a local vet for a considerable distance upstream, passing a flooded side chamber, to reach one of the largest chambers on the Mendips, Bishop's Palace (named in honour of Martin Bishop).

Ironically the flooded side chamber was found to connect back to the show cave and was made accessible by quite a short dig. The chamber named Lloyd Hall after Dr. Oliver Lloyd, ex editor of the Cave Diving Group Journal, made future exploration much easier. The diving team pushed upstream past Bishop's Palace, through another deep sump, into a section of roaring stream passage known as Sheppard's Crook (after another early pioneer cave diver) to reach a final very deep sump. This has been explored to a depth of 50 metres and ascends slowly to terminate in an impassable choke of massive boulders. Diver's have surfaced within the boulders but no way through them has yet been found.

Martyn Farr first dives into Dire Straits 18.5.80

Near Machin Progress with Malcolm Foyle in foreground

Near Lloyd Hall

Lloyd Hall

Lloyd Hall

Bishop's Palace

Floor formations

Mud Stalagmites

Splash formation

Far end of Bishop's Palace

Near the Duck Ponds

Near the Duck Ponds

Near the Duck Ponds

Near the Duck Ponds

Eroded rock

Eroded rock

Rock formations

 
     

 

Reservoir Hole

A tiny hole in the cliff some way up the gorge from Gough's Cave first attracted the attention of cavers more than 50 years ago. Although small the hole emitted a significant draught suggesting there might be a much large cave within. Thus started a series of digs that were to take 20 years to reach fruition. The driving force behind the digging wasthe late Dr. William Stanton and the current layout of the cave is testimony to his systematic approach to cave digs. After the initial entrance crawls a blasted tunnel leads to a chamber and spiralling excavated descent for over 30 metres through boulders to emerge in a fossil phreatic passage - Grand Gallery. Beyond here ascents lead to another boulder climb this time ascending to emerge into the lofty Golgotha rift that can be ascended to a terminal high level chamber named Herbert's Attic in honour of that pioneer of Mendip caving Herbert Balch. The choked muddy lower levels of the cave drop very near the level of the resurgence at the bottom of the gorge and flood in wet weather as water wells up through them.

 

Peter Glanvill peering into the entrance

 

End of entrance passage and T junction

 

Tony Boycott standing over filled in first shaft

Stanton's Drive

Climb over spoil bank into Moonmilk Chamber

Photo taken on my first visit in 1969 - the year Grand Gallery was entered but before this happened

Skull in Moonmilk Chamber

View back towards entrance of Moonmilk Chamber from top of Main Dig

Upper level Main Digt

 

Main Dig

 

 

 

Main Dig

Next excavated section below Main Dig

Next excavated section below Main Dig

 

Tony Boycott at one of the breakthrough points in Main Dig

First Chamber entered at bottom of Main Dig

Tony ascending built in boulder steps

Descent to the first horizontal section after Main Dig

Tony views a repaired stalactite

Repaired stalactite

The horizontal passage leading along the side of the choke to Grand Gallery

Tony Boycott on the final scramble out of Main Dig series

Looking upstream into the choke

 

Looking downstream towards Grand Gallery

Looking downstream in the passage to the upstream choke under the reservoir

 

Looking upstream at the entry point to Grand Gallery

 

 

Grand Gallery

Grand Gallery

Tony Boycott in Grand Gallery

Tony Boycott in Grand Gallery

Formations in Grand Gallery

Formations in Grand Gallery

Formations in Grand Gallery

Formations at the bottom of Grand Gallery

   

 

The approach to Topless Aven

Formations in Topless Aven

Formations in Topless Aven

 

The steps up the start of the boulder climb into Golgotha

Topless Aven

View down Topless Aven

Head of boulder slope in Topless Aven

Halfway through the choke leading to Golgotha

Excavated choke and Angie Glanvill

 

Tim Lyons in the choke

Climbing up through the choke

Jim Durston descending from Golgotha

 

Peter Glanvill emerging into Golgotha Rift

 

Golgotha Rift (You can only see about half the climb!)

Looking down Golgotha from near the bottom

 

Ladder halkway up Golgotha

Golgotha Rift

Herbert's Attic

Herbert's Attic

Herbert's Attic

Herbert's Attic

Herbert's Attic

Herbert's Attic

Herbert's Attic

Herbert's Attic

Herbert's Attic

   
   

Under Pulsation Aven

Gour Dams

Above Chain Chamber

Formations in Chain Chamber

Formations in Chain Chamber

Looking into Potter's Heaven

On the way to Jill's Slither

 

Tangent and mud coated stal in Potter's Heaven

Passage shape in Potter's Heaven

Manganese stained stal in Jill's Slither

Roof Pendants in Jill's Slither

Bottom of Jill's Slither - vocal connection established 2008 with Potter'sHeaven

Mud covered stalagmite formations in Jill's Slither

Whitespot Cave

 

This high rift cave lies only a short distance down the gorge from Reservoir Hole. It is easily accesible to the passerby and the entrance shows signs of having been artificially enlarged. A short distance inside some old iron railings prevent the casual visitor hurtling down the steep slope beyond them. At the bottom a dig has been underway for some time - summer months only because bats hibernate here as well as moths.

 

View up the rift

View down - note the moonmilk coated walls

The WCC dig at the bottom

Hibernating moths

 
     
     

 

The caves of Fairy Cave Quarry

 

When large scale quarrying began in the late 1940's near the village of Oakhill on East Mendip few caves of any size were known, the exception being Stoke Lane Slocker, over at nearby Stoke St. Michael. At the site of the quarry there was one small 150 metre system known as Fairy Cave after which the quarry was named. However it rapidly became obvious that, unfortunately, the quarry had intercepted a network of caves including an underground water course with both ancient and modern drainage converging on the nearby resurgence of St. Dunstan's Well. Hiller's Cave containing 6 or 7 hundred metres of passage was an early big find but it was not until the early 60's that the quarry caves were really put on the map by the exposure of Balch Cave. This was rated at that time as one of the most beautiful caves in the West Country. Much of the exploration of the caves in the quarry was conducted by members of the then recently formed Cerberus Spelaeolgical Society, which, it has to be said, had most of it's digging done for it. Development of the quarry and the appearance of more caves such as Shatter and Withyhill Caves continued until the late 1970's with the relationship between cavers and the quarry owners, Hobbs, becoming decidedly uneasy. This is hardly surprising when one considers that preservation of caves was in direct contrast with the quarry's purpose of removing as much rock as possible. However many of the caves, apart from Balch, have been preserved and an arrangement between the caving community, English Nature and the quarry owners means that the now abandoned quarry is a nature reserve as well as the site of some of the most beautiful caves in Britain. Access to the caves is by arrangement and trips are guided.in order that the spectacular stalactite formations can be preserved. There are over 3.5 km of cave passage in the quarry. The main systems are, Fairy/Hilliers (of which Withyhill cave is the upstream end (the system was truncated by the quarry), Shatter Cave and Withhill Cave. Hillwithy Cave is a muddy truncated remnant of Withyhill Cave, and in fact, is part of the same fossil system as Hilliers Cave although the route is obstructed by narrow muddy sumps and boulder chokes. Caves such as W/L and Conning Tower are truncated remnants of Balch Cave.

The Quarry when active in 1969 before the discovery of Shatter Cave the entrance of which is in the quarry face immediately to the left of the person in the picture. In the corner of the quarry is W/L cave whilst in front of it Conning Tower was later found. W/L is the link between Shatter Cave and Balch Cave whilst Conning Tower leads to an immature streamway flowing under Shatter Cave to the rising at St. Dunstan's Well. The remains of Balch Cave are behind the left hand quarry face. Withyhill was discovered when the quarry was extended to the right of the photograph and Hiller's Cave is someway behind the position from which the photograph was taken.

Entrance to Quarry in the 1980's Quarry entrance June 2009

View from crusher area in 1968 View from crusher area June 2009

Fernhill Cave

 

Interestingly although this was one of the first caves in the quarry to be exposed, it then became buried under many metres of overburden so it was only in 2009 that cavers reentered it after a period of some 50 years. Working from old photographs a team first removed as much rubble as they could with a mechanical excavator and then after the placing of concrete pipes slowly dug their way back into the cave. Although not lengthy Fernhill Cave was renowned for containing some large and spectacular curtain formations. These were found to have been partly damaged, presumably from the effects of blasting but the passage they were in remains very attractive as one can see.

 

 

   

The famous big curtain

 

 

 

 

Hilliers Cave

 

Streamway near Tar Hall

Cambridge Grotto

Corner of Cambridge Grotto

Tar deposits in Tar Hall

Streamway between original entrance and first Choke

   

 

Shatter Cave

 

     

View from Canopy Chamber up into Diesel Chamber

Erratic Rift

Helictites (now destroyed)

Helictites

Helictites at end of Erratic Rift

Straw on a helicitite on a curtain

Pisa Passage

 

Grotto above the main passage

Angel's Wing

Climb into the Ring Road

Ring road

Calcified tape in Pillar chamber

Zed Squeeze

Pillar Chamber

Anchor formation in a niche off Fiveways Chamber

The Porridge Bowl

Recemented straw pillar

 

Formations in terminal passage

In the Terminal Passage

Crystal Pool in the Terminal Passage

Crystal Pool detail

 

Recemented stalactite

In the Terminal Passage

Withyhill Cave

 

 

The semiactive streamway

The Baobab tree

Elephant'sTrunk Chamber

Glistening Pool Series - this stal has now broken off under its own weight

Curtain in Glistening Pool Series

Pearl Chamber

     
     
     

Stoke Lane Slocker

 

This interesting East Mendip cave has something of a reputation. Down the valley from the village of Stoke St. Michael a stream sinks into a drain like hole in the valley floor. Beyond lie several hundred metres of scalloped crawls squeezes and wallows leading to the notorious Sump, first free dived in 1947. The sump is very constricted on the approach and has to be tackled carefull when one returns though it. It is mercifully short but the water one is diving in is muddy and often contaminated by farmyard effluent. Beyond the sump the cave changes character quite dramatically. There is a roomy and attractive streamway above which are large chambers containing some of the finest formations on Mendip. In one of the chambers is a mystery. Charcoal stains boulders and the original explorers found a human skull. No detailed excavation has taken place here because of the problem of acccessibility but it has always been assumed that a second large dry entrance must have collapsed in the distant past. Beyond the constricted sump 2 the cave continues for several hundred metres but the arduous nature of trips to the end has meant that no progress has been made for over 40 years.

The cave's notoriety was assured by the fact that at least 2 cavers have contracted Weil's disease over the years. This has a significant mortality rate so drinking the cave water is not recommended!!

By the way for those interested in etymology (study of word origins) slogaire is an irish Gaelic word for swallow hole. Make of that what you will.

 

Typical Stoke 1 passage

Entering the duck before sump 1

In the duck before Sump 1

The other side of Sump 1

Sewer Passage leading to the Changing Room

 

The Main chamber

The Main chamber looking downstream

Streamway between Main Chamber and the first choke

Streamway between Main Chamber and the first choke

 

Streamway between Main Chamber and the first choke

Streamway between Main Chamber and the first choke

Streamway between Main Chamber and the first choke

 

Streamway between Main Chamber and the first choke

 

Streamway between Main Chamber and the first choke

 

Looking down on Sump 2 pool from the top of the choke

The entry point into Bone Chamber from the 2nd Sump chamber

Bone Chamber

Bone Chamber

Charcoal stained boulder in Bone Chamber

View into the Throne Room

A corner of the Throne Room

Another corner of the Throne Room

In the throne room

Sid and Queen Victoria

The King

Ken and the Queen

Meeting the King

Princess Grotto

Princess Grotto

Between the Throne Room and the Balcony

   

 

 

 

 

 

The ANUS survey

Scottish Caving    (Animation)

Devonshire Caves

Caves of the Forest of Dean

The ANUS survey