Article 3
The area of sea below mean high water springs enclosed by a line starting from a point at 58°North latitude 3°West longitude; then west to 58°North latitude 3°30−West longitude; then north to a point on the mainland coast of Scotland at 58°10.5−North latitude 3°30−West longitude; then north along the shoreline to 58°15−North latitude 3°24.5−West longitude; then east to 58°15−North latitude 3°West longitude; then south to the point of beginning.