During World War 2, Gublusk Bay was an RAF base for Sunderland and Catalina flying boats, one of which - on one of its regular reconnaissance runs into the North Atlantic - sighted the famous German warship Bismark which was then sunk, thus removing a key threat to the shipping lifeline across the Atlantic. The site is now the home of the Lough Erne Yacht Club. (There's a standing joke among locals that tourists who see the "LEYC" roadsign on the main Enniskillen to Kesh road think that's how we spell "lake" in Fermanagh!).