The United States has ten protected areas known as national seashores and four known as national lakeshores, which are operated by the National Park Service, an agency of the Department of the Interior. National seashores and lakeshores must be established by an act of the United States Congress. National seashores and lakeshores are coastal areas federally designated as being of natural and recreational significance as a preserved area. The first national seashore, Cape Hatteras, was established in 1953, and the first national lakeshore, Pictured Rocks, was established in 1966. The newest national lakeshore or seashore is Canaveral, established in 1975. 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.