 Most of those acres are in Everglades National Park.Mangroves cover a wide band all along the southern end of the Florida peninsula facing on Florida Bay, from Key Largo across to close to Flamingo, then inland behind the beaches and marl prairies of Cape Sable and all around Whitewater Bay.From Whitewater Bay, a broad band of mangroves extends up the Gulf coast to Marco Island, including the Ten Thousand Islands.