Moriah Harbour Cay National Park, established in 2002, covers 13,440 acres and its marine environs are a vital part of the ecosystem between Great Exuma and Little Exuma. The marine environment includes a wide array of habitats, including sand dunes, pristine beaches, mangrove creeks, and sea grass beds.
A variety of bird life nests here, including the Gull-billed and Least terns, Nighthawks, Plovers, Oyster catcher, and Ospreys. The cay also has a mangrove ecosystem vital to the protection of juvenile crabs, crawfish, conch, gray snappers, yellowtails, and groupers. Nature enthusiasts may also want to explore the vast amounts of palmettos, buttonwood, bay cedar, and sea oats.