Three memorable moments in Key Biscayne history:1. In 1513 Juan Ponce de Leon, poking around for the fountain of youth, discovered Key Biscayne instead. Confused, he named the island Santa Marta, filled his ships' barrels with water, and took off. 2. Some 450 years later Bebe Rebozo moved here. He was pals with Richard Nixon. 3. In 2001, Le Croisic, named after a small town in Brittany, opened its rustic café doors off Crandon Boulevard. It was mostly a crperie back then, and a wispy gold galette, filled with Mediterranean vegetables, is still prepared the Old World way with sarrasin, a Breton buckwheat that makes for an incomparably nutty batter. Nowadays, though, Croisic's menu goes way beyond crpes to encompass a wide vista of traditional bistro fare such as French onion soup, homemade foie gras terrine, crab quiche, a bouncy bouillabaise (only on Fridays), and a standout steak-frites the crisp, succulent, shoestring fries alone qualify Croisic for honors, especially when dunked into a supplemental side of tangy, tarragon-flecked béarnaise sauce. Nothing beats a Molire flambé of cognac and strawberries wrapped in a sweet crpe for dessert although the tarte tatin is exemplary too. Main courses are all kept below $30, service is friendly, the wine list is serviceable and unpretentious. As Molire would say: Ooh-la-la. Or was it Bebe Rebozo who said thatç