Information: - Geelong is a port city located on Corio Bay and the Barwon River, in the state of Victoria, Australia, south-west of the state capital, Melbourne. It is the second largest Victorian city, with an estimated urban population of 187,417 as at June 2015, having grown 1.8 percent since June 2014. - Melbourne is the capital and most populous city of the Australian state of Victoria, and the second-most populous city in Australia. The name "Melbourne" refers to an urban agglomeration spanning which comprises the broader metropolitan area, as well as being the common name for its city centre. The metropolis is located on the large natural bay of Port Phillip and expands into the hinterlands towards the Dandenong and Macedon mountain ranges, Mornington Peninsula and Yarra Valley. Melbourne consists of 31 municipalities. It has a population of 4,529,500 , and its inhabitants are called Melburnians. - Port Phillip (also commonly referred to as Port Phillip Bay or (locally) just The Bay), is a large bay in southern Victoria, Australia; it is the location of Melbourne. Geographically, the bay covers and the shore stretches roughly . Although it is extremely shallow for its size, most of the bay is navigable. The deepest portion is only , and half the region is shallower than . The volume of the water in the bay is around . - Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It is the world's sixth-largest country by total area. The neighbouring countries are Papua New Guinea, Indonesia and East Timor to the north; the Solomon Islands and Vanuatu to the north-east; and New Zealand to the south-east. Australia's capital is Canberra, and its largest urban area is Sydney. - The Corio Bay is one of numerous bays in the southwest corner of Australia 's Port Phillip , and is the bay on which abuts the City of Geelong . The nearby suburb of Corio takes its name from Corio Bay . What is the relationship between 'corio bay' and 'port phillip bay'?
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