Swan Bay is a bounded rural coastal locality of the City of Greater Geelong

City of Greater Geelong

The City of Greater Geelong is a Local Government Area in Victoria, Australia.It is located in the western part of the state, south-west of Melbourne. It has an area of 1,240 square kilometres. In 2006 it had a population of 191,000...

 between Queenscliff

Queenscliff, Victoria

Queenscliff is a small town on the Bellarine Peninsula in southern Victoria, Australia, south of Swan Bay at the entrance to Port Phillip. It is the administrative centre for the Borough of Queenscliffe...

 and St Leonards

St Leonards, Victoria

St Leonards is a coastal township near Geelong, Victoria, Australia, at the eastern end of the Bellarine Peninsula and the northern end of Swan Bay...

. It is bounded in the west by Portarlington-Queenscliff Road, in the north by Anderson Road, in the east by an offshore line across Swan Bay excluding Swan Island, and in the south by the coastline abutting Queenscliff.

Duck Island

Duck Island (Victoria)

Duck Island, a small barrier island, lies 1.5 km north of Swan Island and south of Edwards Point in the main entrance to Swan Bay from Port Phillip in southern Victoria, Australia. It is part of the Port Phillip Heads Marine National Park and the plants and animals on and around the island are...

 is included in the locality, within the Port Phillip Heads Marine National Park

Port Phillip Heads Marine National Park

The Port Phillip Heads Marine National Park comprises six separate sites, with a combined area of 35.8 km², located in the vicinity of the entrance to Port Phillip, between the Bellarine and Mornington Peninsulas, in Victoria, Australia...

(Swan Bay section).