Cuba is an island nation in the Caribbean Sea. It comprises an archipelago of islands centred upon the geographic coordinates 21°3N, 80°00W. Cuba is the principal island, surrounded by four main archipelagos: the Colorados, the Sabana-Camagüey, the Jardines de la Reina and the Canarreos. Cuba's area is 110,860 km (42,800 sq mi) with a land area of 109,820 km (42,400 sq mi) according to the CIA, which makes it the eighth-largest island country in the world. The main island (Cuba) has 5,746 km (3,570 mi) of coastline and 28.5 km (17.7 mi) of land borders—all figures including the U.S. Navy's Guantanamo Bay Naval Base. Its official area is 109,884 km (42,426 sq mi).
Cuba lies west of the North Atlantic Ocean, east of the Gulf of Mexico, south of the Straits of Florida, northwest of the Windward Passage, and northeast of the Yucatán Channel. The main island (Cuba), at 104,338 km (40,285 sq mi), makes up most of the land area and is the 17th-largest island in the world by land area.