The area of sea lying below high water springs enclosed by a line starting at a point on the south east coast of Skye at Leir Mhaodail at 57°01.2'N 6°W; then south to 57°N 6°W; then east to a point close to Mallaig at 57°N 5°50'W; then east and north along the mainland shore to Garbhan Cosach at 57°15'N 5°38.2'W; then west to a point on the east shore of Skye at 57°15'N 5°39'W; then south and west along the western shore of Skye to the start point.