Jamaica lies 90 miles (140 km) south of Cuba and 118 miles (190 km) west of Haiti. At its greatest extent, Jamaica is 146 mi long (235 km), and it varies between 21-and-52 mi wide (34-and-84 km). With an area of 10,911 km2 (4,213 sq mi), Jamaica is the largest island of the Commonwealth Caribbean and the third largest of the Greater Antilles, after Cuba and Hispaniola.
Along the south coast of Jamaica, a number of small islands are located, such as the Port Royal Cays. Pedro Bank, an area of shallow seas, with a number of cays (low islands or reefs), extending generally east to west for over 160 km (99 mi), lies southwest of Jamaica. To the southeast lies Morant Bank, with the Morant Cays, 51 kilometres or 32 mi from Morant Point, the easternmost point of mainland Jamaica. Alice Shoal, 260 kilometres (160 mi) southwest of the main island of Jamaica, falls within the Jamaica-Colombia Joint Regime.