Castle Harbour, Bermuda St. David'd Island and Cooper's Island. Castle Harbour, Bermuda Castle Harbour is a large natural harbour in Bermuda. It is located between the northeastern end of the main island and St. David's Island. Originally called "Southampton Port", it was renamed as a result of its heavy fortification in the early decades of the Seventeenth century. A gem of Bermuda's coastline, it is surrounded by St. George's Parish in the north, east, south (Tucker's Town), and Hamilton Parish in the west. A chain of islands and rocks stretches across the main opening to the Atlantic Ocean, in the east, notably Cooper's
United States Naval Station White's Island, Bermuda West Indies Squadron since the American War of Independence had cost the Royal Navy all of its continental bases between Nova Scotia and the West Indies. During the Great War, the Royal Naval vessels based in Bermuda had been used to enforce Britain's control of the Atlantic, hunting down German commerce raiders and fighting the Battle of the Falkland Islands. Bermuda's location in the North Atlantic, the presence of the Royal Naval base, and the enclosing barrier reef that protected its anchorages from submarines, resulted in the colony becoming a major forming-up point for trans-Atlantic convoys (Bermuda would serve all