Wales

Longest caves

Show deepest caves.

RankCave NameLength (km)Vertical Range (m)RegionTypeMore Info
1Ogof Draenen70151South WalesAll caveShort description
2Ogof Ffynnon Ddu60.644291South WalesAll caveShort description
3Agen Allwedd32.8160South WalesAll caveShort description
4Ogof Daren Cilau System28232South WalesAll caveShort description
5Dan-Yr-Ogof16150South WalesAll caveShort description
6Carno8.963South WalesAll caveShort description
7Little Neath River Cave8.8125South WalesAll caveShort description
8Ogof Craig A Ffynnon8115South WalesAll caveShort description
9Ogof Llyn Parc4110North WalesPart mineShort description
10Ogof Llyn Du - Ogof Dydd Braf4< 60North WalesAll caveShort description
11Otter Hole3.352< 60South WalesAll caveShort description
12Porth yr Ogof2.53< 60South WalesAll caveShort description
13Ogof T12.5< 60South WalesAll caveShort description
14Tunnel Cave2.135145South WalesAll caveShort description
15Ogof Hesp Alyn297North WalesAll caveShort description
16Ogof Afon Hepste1.76< 60South WalesAll caveShort description
17Llanelly Quarry Pot1.70580South WalesAll caveShort description
18Ogof Tarddiad Rhymney1.608< 60South WalesAll caveShort description
19Llygad Llwchwr1.6< 60South WalesAll caveShort description
20Tooth Cave1.525< 60South WalesAll caveShort description
21Ogof Cynnes1.5< 60South WalesAll caveShort description
22Eglwys Faen1.34< 60South WalesAll caveShort description
23Pant Mawr Pot1.297South WalesAll caveShort description
24Ogof Rhyd Sych1.11< 60South WalesAll caveShort description
25Ogof Fawr1.176South WalesAll caveShort description
26Ogof Pwll Swnd1.07576South WalesAll cave
27Ogof Fechan1.067< 60South WalesAll caveShort description
28Ogof Ap Robert1.01590South WalesAll caveShort description
29Ogof-Yr-Ardd1< 60South WalesAll caveShort description

Total cave length (for caves of 1 km and above): 272.266 km.

If you don't see the cave you want, but you know it should be in the Wales section, remember that this list only shows caves with at least 1 km length of natural passage. Other caves may show up in the list of deepest caves in Wales.

However, if you are looking for a specific cave that does have at least 1 km length of natural passage, and should be listed here, please let me know about it so I can update the database.