The area of sea below high water springs enclosed by a line starting from a point on the west coast of Mull at 56°30'North latitude 6°09'West longitude; then west to 56°30'North latitude 6°30'West longitude; then south to 56°North latitude 6°30'West longitude; then east to a point on the west coast of Jura at 56°North latitude 5°59.5'West longitude; then north, east and south along the shoreline of Jura to a point on the east of the island at 56°North latitude 5° 48.2'West longitude; then east to the mainland shore to a point at 56°North latitude 5°40.5'West longitude; then north along the mainland shore to 56°15'North latitude 5°30.6'West longitude; then west to a point on the mainland shore at 56°15'North latitude 5°34.7'West longitude; then west and north along the mainland shore to a point close to Deginish Point at 56°15'North latitude 5°35.8'West longitude; then west to a point on the east coast of Luing at 56°15'North latitude 5°37.3'West longitude; then south, west and north along the shoreline to a point on the west coast of Luing at 56°15'North latitude 5°39.2'West longitude; then west to 56°15'North latitude 6°West longitude; then north to a point on the south coast of Mull at 56°18.6'North latitude 6°West longitude; then west and north along the shoreline of Mull to the point of beginning.