The waters bounded by a line beginning at a point on the west coast of the Republic of Ireland in 54° 30' north latitude; thence due west to 18° 00' west longitude; thence due south to 48° 00' north latitude; thence due east to the coast of France; thence in a northerly and north-easterly direction along the coast of France to a point in 51° 00' north latitude; thence due west to the south-east coast of England; thence in a westerly and northerly direction along the coasts of England, Wales and Scotland to a point on the west coast of Scotland in 55° 00' north latitude; thence due west to the coast of Northern Ireland; thence in a northerly and westerly direction along the coasts of Northern Ireland and the Republic of Ireland to the point of beginning.