The Abaco Islands lie in the northern Bahamas and comprise the main islands of Great Abaco and Little Abaco, together with the smaller Wood Cay, Elbow Cay, Lubbers Quarters Cay, Green Turtle Cay, Great Guana Cay, Gorda Cay, (Castaway Cay), Man-o-War Cay, Stranger's Cay, Umbrella Cay, Great Stirrup Cay, Walker's Cay, Moore's Island and Sandy Point .