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Related to Port Jackson: Port Jackson shark
Sydney Harbour,inlet of the Pacific Ocean, 22 sq mi (57 sq km), 12 mi (19 km) long and 1.5 mi (2.4 km) wide at its mouth, New South Wales, Australia, forming Australia's finest harbor. The Parramatta River forms its western arm. Sydney on the south shore is connected with its northern suburbs by Sydney Harbour Bridge (1932), the second longest steel-arch bridge in the world, with an arch span of 1,650 ft (503 m).
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an inlet of the Pacific on the coast of SE Australia, forming a fine natural harbour: site of the city of Sydney, spanned by Sydney Harbour Bridge
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005