This is a remarkable feature and a major attraction for the visitor. It is a natural rectangular shaped pool into which the sea ebbs and flow at the bottom of the cliffs south of Dún Aonghasa on Inis Mór. Access to it is gained by walking east along the cliffs from Dún Aonghasa or more easily by following the signs from the village of Gort na gCapall.
The above image courtesy of Dermot Doherty