Western Port

Western Port. Western Port is a large tidal bay located in the southern part of the state of Victoria, opening into Bass Strait. It is situated approximately 60 kilometres southeast of Melbourne and is notable for its two large islands, French Island and Phillip Island. The bay's complex system of mudflats, channels, and mangroves supports a rich biodiversity and has been recognized under the Ramsar Convention.

Geography

Western Port is bounded by the Mornington Peninsula to the west and the Bass Coast to the east, with its entrance flanked by Cape Schanck and Point Grant on Phillip Island. The bay features a intricate network of tidal channels and extensive intertidal mudflats, with major inflows from the Bunyip River and the Lang Lang River. Key settlements along its shores include Hastings, Tooradin, and Cowes, with the Crib Point area being a significant industrial and port facility. The geomorphology is dominated by the large granitic islands of French Island and Phillip Island, which shelter much of the northern bay waters.

History

The bay was first charted by European explorers in January 1798 when George Bass sailed past its entrance during his voyage in the Tom Thumb. It was later more thoroughly explored by Matthew Flinders in the sloop HMS *Norfolk* in late 1798, who named it for its position relative to the earlier discovered Port Phillip. Throughout the 19th century, the area saw sealing and whaling activities, with settlements like Corinella established as part of the Sullivan Bay convict settlement. The Koo-Wee-Rup Swamp reclamation project, begun in the late 1800s, dramatically altered the northern shoreline for agriculture. During World War II, defensive installations were built at Fort Nepean and Point Cook to guard the bay's approaches.

Ecology and environment

Western Port is a wetland of international importance, designated under the Ramsar Convention in 1982. Its extensive seagrass beds, mangrove forests, and saltmarshes provide critical habitat for migratory birds listed under the Japan-Australia Migratory Bird Agreement and the China-Australia Migratory Bird Agreement. The bay supports significant populations of the Orange-bellied Parrot and the Growling Grass Frog, while its waters are a key area for the Burrunan dolphin, a species only recently described. Major environmental challenges include pollution from catchment runoff, the historical impacts of the 1971 Western Port oil spill, and ongoing threats from coastal development and climate change.

Economy and infrastructure

The bay's economy is centered on the Port of Hastings, a major commercial and industrial hub specializing in bulk liquid and dry cargo, with facilities operated by ExxonMobil and BlueScope Steel. The Western Port Highway and the Bass Highway provide critical road freight links to the Port of Melbourne and regional Gippsland. Other significant industries include agriculture on the reclaimed Koo-Wee-Rup Swamp lands, aquaculture, and the Phillip Island service sector. The Australian Marine Complex at Hastings supports naval and commercial shipbuilding, while the Crib Point jetty has been a focal point for energy import proposals.

Recreation and tourism

The bay and its islands are major tourist destinations, with Phillip Island particularly famous for the Phillip Island Grand Prix Circuit and the nightly Penguin Parade at Summerland Beach. French Island is largely protected as a national park, offering bushwalking and birdwatching, while the Western Port Bay Marine National Park protects several offshore channels and islands. Popular recreational activities include sailing, fishing for species like King George whiting, and kayaking through the mangroves. Key access points and visitor centers are found at Cowes, San Remo, and Stony Point.

Category:Bays of Victoria (Australia) Category:Ramsar sites in Australia