Acting as a barrier, the Gulf Stream protects the Bahamas from Florida's rain and river run-off, and together with vast oceanic trenches that allow sediment to settle into deep water, it ensures spectacular visibility. The Bahama Banks act as a breeding and feeding ground for a prolific variety of marine life; they are particularly favored mating grounds for bottlenose and spotted dolphins. In addition to world-class reefs, blue holes and wrecks, the Bahamas are famous for encounters with stingrays, dolphins and sharks.
Due to the sparse population of Guana, as well as the comparitively small number of Travelers who visit this rather incredible cay, the diving and snorkeling of Guana's eastern shores is among the very best in all the Abacos. The Great Abaco Barrier Reef consists of large, branching formations of Elkhorn Coral with medium to large Brain and Star Coral tumbling down the inside of the barrier. The formations are riddled with fissures providing meandering trails and caves as well as isolated Coral Gardens. A few of the more well known sites include: The Blue Hole, Guana Gardens, The Tower, The Catacombs, Grouper Alley, Twin Sisters and Wayne's World.
Keep hurricane season, June through October, in mind; winter weather from December to March means 23°C, cooler water, and sweaters in the evening. May through November is summer in the Bahamas. During these months, the most rain falls and temperatures average about 27°C.