Makassar is the provincial capital of South Sulawesi, Indonesia. It is the largest city on Sulawesi Island in terms of population, and fifth-largest city in the Indonesian Archipelago after Jakarta, Surabaya, Bandung and Medan. From 1971 to 1999, the city was named Ujung Pandang, after a pre-Colonial fort in the city, and the two names are often used interchangeably. The port city is located on the southwest coast of the island of Sulawesi, facing the Makassar Strait. The city's area is 67.87 square miles (175.77 square kilometres). Its official metropolitan area, known as 'Mamminasata', covers an area of 955 square miles (2,473 square kilometres). The city is southern Sulawesi's primary port, with regular domestic and international shipping connections. It is nationally renowned as an important port of call for phinisi boats, traditional sailing vessels which are among the last in use for regular long-distance trade.