Satellite image of sand and seaweed in the Bahamas
We have NASAs Landsat program to thank for this uncommon view of the Atlantic Ocean within the Bahamas, as captured via satellite. The patterns you notice are sand and seaweed beds which have been sculpted by means of ocean currents. That dark spot Its called the Tongue of the Ocean. The tongue is a deep, darkish trench that separates the islands of Andros and New Providence within the Bahamas and connects to a larger geological function known as the Great Bahama Canyon.