Article 3
The area of sea below high water springs enclosed by a line starting from a point on the west coast of Tiree at 56° 30' North latitude 7° West longitude; then south and east along the shoreline of Tiree to Scarinish on the east coast of Tiree at 56° 30' North latitude 6° 48.2' West longitude; then east to a point on the west coast of Mull at 56° 30' North latitude 6° 09' West longitude; then south along the shoreline of Mull to a point at 56° 18.7' North latitude 6° West longitude; then south to 56° North latitude 6° West longitude; then west to 56° North latitude 7° West longitude; then north to the point of beginning.