Sydney is located on Australia's south-east coast of the Tasman Sea. Inhabitants of Sydney are called Sydneysiders, comprising a cosmopolitan and international population. The city is built on hills surrounding Port Jackson which is commonly known as Sydney Harbour, where the iconic Sydney Opera House and the Harbour Bridge feature prominently. The hinterland of the metropolitan area is surrounded by national parks, and the coastal regions feature many bays, rivers, inlets and beaches including the famous Bondi Beach. Within the city are many notable parks, including Hyde Park and the Royal Botanic Gardens.