Estrecho de San Carlos
English Captain John Strong, commander of "Welfare", sailed between the two principal islands in 1690 and called the passage "Falkland Channel" (now Falkland Sound), after Anthony Cary, 5th Viscount Falkland (1656–1694), who as Commissioner of the Admiralty had financed the expedition and later became First Lord of the Admiralty. From this body of water the island group later took its collective name.