Sydney is the state capital of New South Wales and the most populous city in Australia and Oceania. It is located on Australia’s south-east coast in a coastal basin bordered by the Pacific Ocean to the east, the Blue Mountains to the west, the Hawkesbury River to the north and the Woronora Plateau to the south.
Sydney lies on a submergent coastline, where the ocean level has risen to flood deep river valleys carved in the sandstone. There are more than 70 harbour and ocean beaches, including the famous Bondi Beach, in the urban area.
The central business district of Sydney is roughly bounded by Circular Quay and Sydney Harbour to the north, Macquarie Street to the east, Darling Harbour to the west and Liverpool Street and Central railway station to the south.