2006
H1134 : Marble Arch Caves
taken 19 years ago, 5 km SE of Blacklion, Co Cavan, Ireland

Marble Arch Caves
This is the entrance to Marble Arch Caves a European Geopark at the edge of the Cuilcagh Mountains which are Carboniferous Limestone which is often associated with Karstic features such as sinkholes and caves.