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Florida Keys National Marine Sanctuary

Designated on Nov. 16, 1990, Florida Keys National Marine Sanctuary is one of 15 marine protected areas that make up the National Marine Sanctuary System. Administered by NOAA, a federal agency, and jointly managed with the state of Florida, Florida Keys National Marine Sanctuary protects 2,900 square nautical miles of waters surrounding the Florida Keys, from south of Miami westward to encompass the Dry Tortugas, excluding Dry Tortugas National Park. The shoreward boundary of the sanctuary is the mean high-water mark, essentially meaning that once you set foot in Keys waters, you have entered the sanctuary.

Within the boundaries of the sanctuary lie spectacular, unique and nationally significant marine resources, including the world’s third-largest barrier reef, extensive seagrass beds, mangrove-fringed islands and more than 6,000 species of marine life. The sanctuary also protects pieces of our nation’s history such as shipwrecks and other archaeological treasures.

Visitors to the sanctuary are encouraged to take advantage of the many recreational activities this amazing ecosystem has to offer, including world-class diving, swimming, snorkeling and fishing. However, rules and regulations are in place to make sure that these activities happen in ways – and at places – that reduce user conflict and are not harmful to the sanctuary’s natural and cultural resources.

For more information, please visit the official Florida Keys National Marine Sanctuary webpage.

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