This section of the west coast of Mingulay is split by several dramatic chasms caused by volcanic dykes forming lines of weakness more easily eroded by the sea. The geo here is followed by a large cave, with the entrance to the narrow sea channel around Arnamul beginning on the extreme right of the photo.
Uploaded to Geograph by Gordon Hatton on 26 August 2010
Photo © Gordon Hatton, 26 August 2010. Licensed for reuse under this Creative Commons licence