The Abacos are a group of islands and cays that form a 120-mile–long chain stretching over 650 square miles. The coastlines are scalloped with bays, coves and protected harbors that feature full-service marinas and resorts. Great Abaco Island and Little Abaco serve as the "mainland." Marsh Harbour has a lively downtown area with all city amenities. Treasure Cay boasts miles of pristine beaches, including one of the top 10 beaches in the world. Elbow Cay and Green Turtle Cay are old English loyalist settlements, where you’ll find beautifully preserved colonial architecture with a touch of Bahamian pastels, of course. And Guana Cay is famous for Sunday barbecues atop the island's tall sand dune, which overlooks a magnificent 7-mile–long beach.