Article 3
The area of sea around the islands of Orkney below mean high water springs enclosed by a line extending from Tor Ness on the island of Hoy at 58°47' North latitude 3°17.5' West longitude; then due south to a point at 58°45' North latitude 3°17.5' West longitude; then due east to a point on the mainland of South Ronaldsay at 58°45' North latitude 3°00' West longitude; then north along the shoreline of South Ronaldsay to a point at 58°50' North latitude 3°00' West longitude; then north to a point on the Mainland of Orkney at 58°57' North latitude 3°00' West longitude; then west and north along the Mainland shoreline to Breck Ness to 58°58' North latitude 3°21' West longitude; then south and west to the Kame of Hoy on Hoy at 58°55.5' North latitude 3°24' West longitude; then east, south and west along the shoreline of Hoy to the point of beginning.