The South Pacific is the least polluted of the world's oceans.
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Big Major Cay, Exuma, BahamasThis island is completely uninhabited, which is one of the reasons why it is known to have one of the cleanest seas in the world. This island is most well-known for its unique inhabitants who live and swim on the beach of this beautiful location and they are surprisingly pigs!
The low flux of particles to the South Pacific Gyre cause the water there to be the clearest seawater in the world. Beneath the seafloor, the marine sediments and surrounding porewaters contain an unusual subseafloor biosphere.
The water is clear due to the absence of plankton and suspended particles. Plankton is the base of the food web in all oceans and, because there is little plankton in the tropics, tropical ocean water is nearly sterile in comparison with the fertile waters of the temperate oceans.