Space Shuttle Mission STS-5

An image which was taken during Space Shuttle mission STS-5, showing a portion of the tongue of the ocean (the wavy lines of various shades of blue are caused by the differential coral growth relative to the warm/cool water transfer in and out of the tongue), and the Bahamas Bank, Bahamas Archipelago, 16th November 1982. The light blue region is the shallow sea bottom where the Bahama Bank is no more than 30 ft deep; at the contact between light and dark blue, an underwater sheer cliff drops over a mile in depth.