22 May Marble Arch Caves, County Fermanagh
The caves are cut by three streams which flow down the slopes of Cuilcagh Mountain, unite underground and emerge as the Cladagh River. Tours lasting 75 minutes consists of a boat ride into the depths of the cave complex and a guided walk that leads past stalagmites, calcite cascades and other curious limestone formations. The 9m “Marble Arch” itself stands outside the cave system in the glen where the river gushes out from below ground.
The Marble Arch Caves are a must-see attraction on your Ireland tours.