Mangrove Cay, Bahamas offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Mangrove Cay, Mangrove Cay is known for its pristine Andros Barrier Reef and the unique blue holes that attract divers and nature enthusiasts. The best time to travel to Mangrove Cay, Bahamas, is from December to April, with average air temperatures around 75-85°F (24-29°C) and water temperatures around 75-80°F (24-27°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!