Сity, capital of the state of New South Wales, Australia. Located on Australia's southeastern coast, Sydney is a major port in the South Pacific and is noted for its beautiful harbour. The city was established as a penal colony in the late 18th century and had become a major trading centre even before the first pioneers pushed inland. It is now the largest metropolitan area in Australia. A brief treatment of Sydney follows. For full treatment, see Sydney. The metropolitan area of Sydney ...