New York City, New York, United States

Gateway National Recreation Area; the New York State portion includes the Jamaica Bay Wildlife Refuge in Brooklyn, over 9,000 acres (36 km2) of salt marsh, islands and water that covers most of Jamaica Bay. Fort Wadsworth in Staten Island with historic pre-Civil war era Battery Weed and Fort Tompkins and Great Kills Park also on Staten Island with beaches and Great Kills Harbor.
New York State Parks
There are seven state parks within the confines of New York City, including Clay Pit Ponds State Park, a natural area which includes extensive riding trails, and Riverbank State Park, a 28-acre (110,000 m2) facility that rises 69 feet (21 m) over the Hudson River.