Marble Arch Caves
| Marble Arch Caves | |
|---|---|
| Uaimheanna an hÁirse Marmair | |
"The Castle" gour pool formations in the Marble Arch Caves show cave | |
| Location | near Florencecourt, County Fermanagh |
| Coordinates | 54°15′30.34″N 7°48′51.53″W / 54.2584278°N 7.8143139°W |
| Depth | 94 m |
| Length | 11.5 km (7.1 mi) |
| Discovery | 1895 |
| Access | Show cave; accessible beyond with permission from Marble Arch Caves centre |
The Marble Arch Caves are a series of natural limestone caves located near the village of Florencecourt in County Fermanagh, Northern Ireland. The caves are named after the nearby Marble Arch, a natural limestone arch at the upstream end of Cladagh Glen under which the Cladagh River flows. The caves are formed from three rivers draining off the northern slopes of Cuilcagh mountain, which combine underground to form the Cladagh. On the surface, the river emerges from the largest karst resurgence in Ireland, and one of the largest in the United Kingdom. At 11.5 kilometres (7.1 mi) the Marble Arch Caves form the longest known cave system in Northern Ireland, and the karst is considered to be among the finest in the British Isles.