This image shows Great Exuma, Long Island, Rum Cay, and Conception Island. The underwater formations at the western edge of the image date from the Pleistocene when the ocean level was much lower than it is today. They sit next to the 6000 ft. deep Tongue of the Ocean and when they were above sea-level, erosion formed the channels and gulleys visible here before being covered by the rising ocean waters. Also note the channels in the underwater sand carved by ocean currents that are being squeezed between narrow gaps in the cays around the main islands.

The area covered by this image is approximately 130x92 miles.