The United States has ten protected areas known as national seashores and three known as national lakeshores, which are public lands operated by the National Park Service (NPS), an agency of the Department of the Interior. National seashores and lakeshores are coastal areas federally designated by Congress as being of natural and recreational significance as a preserved area. All of the national lakeshores are on Lakes Michigan and Superior, and nine of the ten national seashores are on the Atlantic Ocean, including two on the Gulf of Mexico. Point Reyes is the only national seashore on the Pacific coast. While all of these protected sites have extensive beaches for recreation, they extend inland to include other natural resources like wetlands and marshes, forests, lakes and lagoons, and dunes. Many also feature historic lighthouses and estates.
National seashores are located in ten states and national lakeshores are in two other states. Florida, North Carolina, and Michigan each have two. The largest national seashore or lakeshore is Gulf Islands, at over 137,000 acres (550 km); the smallest is Fire Island, at 19,579 acres (79.23 km). The total areas protected by national seashores and lakeshores are approximately 595,000 acres (2,410 km) and 214,000 acres (870 km), respectively. These thirteen sites had a total visitation of 21.1 million people in 2017, led by Cape Cod at over 4 million visitors. The lakeshores and seashores have an emphasis on recreation, and most allow hunting and off-road vehicles, which is not permitted in national parks. Five seashores and lakeshores also include land more strictly protected as wilderness areas.
