Swansea is a town in the heart of Tasmania's east coast, on the north-west shore of Great Oyster Bay and overlooking Freycinet National P…Swansea is a town in the heart of Tasmania's east coast, on the north-west shore of Great Oyster Bay and overlooking Freycinet National Park. It was the first municipality in Australia to be established after Hobart and Sydney. At the 2021 census, Swansea had a population of 997.