Jamaica lies 90 miles(145km) south of Cuba an 118 miles (190km) west of Haiti. Its capital city, Kingston, is about 571 miles (920km) southeast of Miami. At its greatest extent, Jamaica is 146 miles (235km) long, and it varies between 21 and 52 miles (35-85km) wide. With an area of 10,911 square kilometres, 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 are a number of small islands, 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 kilometres, lies southwest of Jamaica. To the southeast lies Morant Bank, with the Morant Cays, fifty-one kilometres from Morant Point, the easternmost point of mainland Jamaica. Alice Shoal, 260 km southwest of the main island of Jamaica, falls within the Jamaica-Colombia Joint Regime.