Key West is an island city in Florida and the county seat of Monroe County. The city boundaries include the island of Key West and several nearby islands, as well as the section of Stock Island north of U.S. Route 1, on the adjacent key just east of the city. Sigsbee Park—originally known as Dredgers Key—and Fleming Key, both located to the north, and Sunset Key located to the west are all included in the city boundaries. Both Fleming Key and Sigsbee Park are part of Naval Air Station Key West and are inaccessible to the general public. Key West is the southernmost city in the contiguous United States and the southern terminus of U.S. Route 1, State Road A1A, the East Coast Greenway and, before 1935, the Florida East Coast Railway. Key West is 129 miles southwest of Miami by air, about 160 miles by car, and 106 miles north-northeast of Havana, Cuba. Cuba, at its closest point, is 94 miles south. Key West is a port of call for many passenger cruise ships. The Key West International Airport provides airline service.