United Kingdom
91 caves
Ease Gill Cave System
United Kingdom
66000 m long · 137 m deep
Ogof Ffynnon Ddu
United Kingdom
59000 m long · 274.5 m deep
Ogof Agen Allwedd
United Kingdom
32500 m long
Gaping Gill
United Kingdom
21000 m long · 192 m deep
Titan
United Kingdom
17000 m long · 141.5 m deep
Dan yr Ogof
United Kingdom
15500 m long
Slaughter Stream Cave / Wet Sink
United Kingdom
13000 m long · 100 m deep
Mossdale Caverns
United Kingdom
10500 m long · 76 m deep
Langcliffe Pot
United Kingdom
9600 m long · 116 m deep
Swildon's Hole
United Kingdom
9144 m long · 167 m deep
Ogof Craig a Ffynnon
United Kingdom
7000 m long
St Cuthbert's Swallet
United Kingdom
6700 m long · 145 m deep
White Scar Caves
United Kingdom
6500 m long
Stump Cross Caverns
United Kingdom
6200 m long
Notts Pot
United Kingdom
5200 m long · 157 m deep
Lost Johns' Cave
United Kingdom
4800 m long · 211 m deep
Short Drop Cave–Gavel Pot system
United Kingdom
4680 m long · 212 m deep
Ireby Fell Cavern
United Kingdom
4600 m long · 128 m deep
Wookey Hole Caves
United Kingdom
4380 m long · 90 m deep
Ingleborough Cave
United Kingdom
4200 m long
Upper Flood Swallet
United Kingdom
4100 m long · 110 m deep
Ogof Llyn Parc
United Kingdom
4000 m long · 430 m deep
Noon's Hole (Sumera) – Arch Cave
United Kingdom
3700 m long · 108 m deep
Bakers Pit
United Kingdom
3631 m long