The southern Pacific Ocean off the Osa Peninsula in Costa Rica is an amazing natural wonder of marine biodiversity, home to more than 25 species of dolphins and whales, four of the world’s eight different sea turtles, along with manta rays, sailfish, marlin, tuna and sharks. The southern Pacific, and especially Golfo Dulce (Sweet Gulf) on the eastern side of the Osa Peninsula, are vital breeding and reproducing areas for endangered hammerhead sharks and migrating endangered Humpback Whales.
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