This is an incomplete list of caves in the United Kingdom, including information on the largest and deepest caves in the UK.

Longest, deepest and largest The longest cave system in the UK is the Three Counties System in the Yorkshire Dales, with of passageways. It includes the Ease Gill system, the Notts Pot / Ireby Fell Cavern system, the Lost Johns' Cave system, and the Pippikin Pot system, all of which are connected.

The deepest cave in Wales and the UK is Ogof Ffynnon Ddu, deep and containing around of passageways. The deepest cave in England is the Three Counties System which is deep between the entrance of Large Pot, and the deepest point reached by diving in Gavel Pot. The deepest cave in Scotland is Uamh an Claonaite in Assynt, deep. "Scottish Cave and Mine Database. Grampian Speleological Group The deepest cave in Northern Ireland is Reyfad Pot in County Fermanagh, deep.

A sea cave on the north side of Calder's Geo in Shetland was measured in 2014 at over high and with a floor area of around . This makes it the largest known cave chamber in the United Kingdom." 'Biggest cave' is Calders Geo in Shetland at Esha Ness". BBC News. Retrieved 28 August 2014."Esha Ness sea cave is 'largest in Britain'". BBC News. Retrieved 28 August 2014.

A chamber in Reservoir Hole, Cheddar Gorge called “The Frozen Deep” was discovered in 2012 and found to be high and long.

List of Caves in the United Kingdom and Ireland This is a list of all caves over 1km length and 60m depth in the United Kingdom after Wilton-Jones. CaveLength (km)Depth (m)RegionThree Counties System86.619253Northern DalesOgof Draenen70151South WalesOgof Ffynnon Ddu60.644309.5South WalesAgen Allwedd32.8160South WalesOgof Daren Cilau System28232South WalesKingsdale Master Cave27165Northern DalesClearwell Caves24107Forest Of DeanGaping Gill System21192Northern DalesPeak Cavern - Speedwell Cavern17.75248Peak DistrictDan-Yr-Ogof16150South WalesSlaughter Stream Cave14100Forest Of DeanHudgill Burn Mine Caverns13.244< 60Northern DalesMarble Arch - Upper Cradle - Lower Cradle - Prod's Pot - Cascades Rising11.5< 60Co. FermanaghMossdale Caverns10.560Northern DalesLancliffe Pot9.6116Northern DalesSwildon's Hole9.41167MendipCarno8.963South WalesLittle Neath River Cave8.8125South WalesOgof Craig A Ffynnon8115South WalesSt. Cuthbert's Swallet7.103145MendipThe Goyden System7.1< 60Northern DalesGingling Hole6.9177Northern DalesReyfad - Pollnacrom - Polltullybrack6.7193Co. FermanaghWhite Scar Cave6.5< 60Northern DalesMongo Gill Hole - Stump Cross Caverns5.8< 60Northern DalesCharterhouse Cave5.218228MendipPenyghent Pot5.2196Northern DalesGiants Hole - Oxlow Caverns5.12211Peak DistrictShannon Cave - Polltullyard5130Co. FermanaghBagshawe Cavern575Peak DistrictDale Barn Cave4.9< 60Northern DalesUpper Flood Swallet4.72136MendipMeregill - Roaring Hole4.6181Northern DalesMagnetometer Pot4.691Northern DalesKnock Fell Caverns4.5< 60Northern DalesRed Moss/Birkwith System4.2< 60Northern DalesOgof Llyn Parc4110North WalesMiss Graces Lane Swallet472Forest Of DeanDub Cote Cave4< 60Northern DalesOgof Llyn Du - Ogof Dydd Braf4< 60North WalesNoon's Hole - Arch Cave3.7108Co. FermanaghDow Cave - Providence Pot3.7< 60Northern DalesWookey Hole3.66182MendipBaker's Pit - Reeds3.631< 60DevonBirks Fell Cave3.6142Northern DalesBoreham Cave3.6< 60Northern DalesGough's Cave3.405115MendipOtter Hole3.352< 60South WalesCarlswark Cavern3.24361Peak DistrictFairy Holes3.2< 60Northern DalesPollaraftra3.1373Co. FermanaghUamh An Claonaite2.868110AssyntIbbeth Peril - Upper Hackergill Caves2.803< 60Northern DalesEastwater Cavern2.8160MendipKnotlow Cavern2.676Peak DistrictLathkill Head Cave - Ricklow Cave2.58< 60Peak DistrictPorth yr Ogof2.53< 60South WalesBoho Caves2.5< 60Co. FermanaghExcalibur Pot2.5< 60North YorkOgof T12.5< 60South WalesAlum Pot System2.454129Northern DalesAygill Caverns2.438< 60Northern DalesSleets Gill Cave2.476Northern DalesHurtle Pot - Jingle Pot System2.3764Northern DalesStoke Lane Slocker2.25< 60MendipRobinsons' Pot2.2< 60Northern DalesReservoir Hole2.196131MendipTunnel Cave2.135145South WalesBlack Keld2.115< 60Northern DalesOgof Hesp Alyn297North WalesCliff Force Cave2< 60Northern DalesGB Cave1.95134MendipDog Hole - Crystal Cave1.95< 60Northern DalesSmeltmill Beck Cave1.9< 60Northern DalesP8 (Jackpot)1.870Peak DistrictBlea Gill Cave1.8< 60Northern DalesDevis Hole Mine Caves - South and East Cave Series1.791< 60Northern DalesJoint Hole1.77< 60Northern DalesOgof Afon Hepste1.76< 60South WalesLlanelly Quarry Pot1.70580South WalesAyleburn Mine Cave1.7< 60Northern DalesDevis Hole Mine Caves - Central Maze1.7< 60Northern DalesMalham Cove Risings1.7< 60Northern DalesGreat Douk Cave1.676< 60Northern DalesLongwood Swallet1.65175MendipRedhouse Lane Swallet1.615< 60Forest Of DeanOgof Tarddiad Rhymney1.608< 60South WalesRedmire Pot1.6117Northern DalesLlygad Llwchwr1.6< 60South WalesSpittle Croft Cave1.6< 60Northern DalesGoatchurch Cavern1.53263MendipTooth Cave1.525< 60South WalesWigmore Swallet1.52113MendipLong Kin East - Rift Pot1.5113Northern DalesTullyhona Rising Cave1.565Co. FermanaghAllt Nan Uamh Stream Cave1.5< 60AssyntOgof Cynnes1.5< 60South WalesPollnagossan (Pollnadossan)1.5< 60Co. CavanScoska Cave1.5< 60Northern DalesBorrins Moor Cave1.433< 60Northern DalesThrupe Lane Swallet1.417120MendipCnoc Nan Uamh1.484AssyntShatter Cave1.373< 60MendipEglwys Faen1.34< 60South WalesBlue John Caverns1.32490Peak DistrictTyning's Barrow Swallet1.296132MendipEglin's Hole1.28< 60Northern DalesMarble Steps Pot1.273131Northern DalesTatham Wife Hole1.219155Northern DalesBig Sink Cave (or swallet)1.2126Forest Of DeanPant Mawr Pot1.297South WalesBown Scar Cave1.2< 60Northern DalesCherry Tree Hole1.2< 60Northern DalesHagg Gill Pot1.2< 60Northern DalesWhite Keld1.2< 60Northern DalesWindegg Mine Caverns1.2< 60Northern DalesManor Farm Swallet1.17179MendipFairy Cave - Hillier's Cave - Hillwithy Cave1.17< 60MendipCrescent Pot1.146122Northern DalesOgof Rhyd Sych1.11< 60South WalesLangstroth Pot1.190Northern DalesOgof Fawr1.176South WalesGrabbers Cave1.1< 60Northern DalesHugh's Moss Cave1.1< 60Northern DalesPridhamsleigh Cavern1.1< 60DevonWater Icicle Close Cavern1.1< 60Peak DistrictYew Cogar Cave1.1< 60Northern DalesLittle Hull Pot1.097110Northern DalesHeron Pot1.097< 60Northern DalesOgof Pwll Swnd1.07576South WalesDry Gill Cave1.07< 60Northern DalesOgof Fechan1.067< 60South WalesLower Cales Dale Cave1.055< 60Peak DistrictPikedaw Calamine Caverns1.055< 60Northern DalesRowter Hole1.044140Peak DistrictHammer Pot1.03690Northern DalesCreevy Cave1.024< 60Co. MonaghanOgof Ap Robert1.01590South WalesLionel's Hole1.006< 60MendipBarras End Mine Caverns1< 60Northern DalesCarrickbeg Rising Cave (Bunty Pot)1< 60Co. FermanaghKent's Cavern1< 60DevonNidd Head North West Rising1< 60Northern DalesOgof-Yr-Ardd1< 60South WalesSkirwith Cave1< 60Northern DalesTub Hole1< 60Northern Dales

England By English caving region.

Devon See also Caves in Devon

Ash Hole Cavern Bakers Pit, Buckfastleigh Chudleigh Cavern Kent's Cavern Kitley Show Cave Pridhamsleigh Cavern, Ashburton Reed's Cave

Mendip Hills The following are all within Somerset unless otherwise stated. See also Caves of the Mendip Hills.

Aveline's Hole Charterhouse Cave Cox's cave Eastwater Cavern GB Cave Goatchurch Cavern Gough's Cave Lamb Leer Longwood Swallet Manor Farm Swallet Pierre's Pot Reservoir Hole Rhino Rift Shatter Cave St Cuthbert's Swallet Stoke Lane Slocker Swildon's Hole Thrupe Lane Swallet Wookey Hole Caves

Peak District The following are all within Derbyshire unless otherwise stated. See also List of caves in the Peak District and List of caves in Derbyshire. Blue John Cavern Great Masson Cavern Great Rutland Cavern Oxlow Cavern Peak Cavern Poole's Cavern Speedwell Cavern Thor's Cave, Staffordshire Titan Treak Cliff Cavern

Yorkshire Dales

Other areas Alloa Lea Quarry Cave, Northumberland Creswell Crags Excalibur Pot, North York Moors Kirkdale Cave, North York Moors Miss Grace's Lane, Forest of Dean, Gloucestershire Mother Ludlam's Cave, Moor Park, Farnham, Surrey Dog Hole Cave, Cumbria Pate Hole, Cumbria Slaughter Stream Cave, Forest of Dean, Gloucestershire Heathery Burn Cave, Stanhope, County Durham Pen Park Hole, Bristol Clearwell Caves, Forest of Dean, Gloucestershire

Northern Ireland The following are all within County Fermanagh unless otherwise stated. See also Caves of the Tullybrack and Belmore hills. Badger Pot Boho Caves Marble Arch Caves Noon's Hole Portbraddon Cave, County Antrim Shannon Cave, County Fermanagh and County Cavan, Republic of Ireland

Scotland

Calder's Geo, Shetland Cleeves Cove Cave, North Ayrshire Fingal's Cave, Inner Hebrides Smoo Cave, Sutherland Uamh An Claonaite, Sutherland

Wales All in Brecon Beacons unless stated.

Cathole Cave, Gower Dan yr Ogof Ogof Agen Allwedd Ogof Craig a Ffynnon Ogof Daren Cilau Ogof Draenen Ogof Ffynnon Ddu Ogof Hen Ffynhonnau, Flintshire Ogof Hesp Alyn, Flintshire Ogof Llyn Parc, Wrexham Ogof Nadolig, Flintshire Ogof y Daren Cilau Otter Hole, Gwent Porth yr Ogof Pwll Dwfn

Bibliography

See also Caving in the United Kingdom Geography of the United Kingdom List of caves List of UK caving fatalities Speleology

References

External links UK Caves