The Western Port, known as Western Port Bay, is a large tidal bay in southern Victoria, Australia, opening into Bass Strait. It is the second largest bay in the state. Geographically, it is dominated by the two large islands; French Island and Phillip Island. Contrary to its name, it lies to the east of the larger Port Phillip, and is separated from it by the Mornington Peninsula. It is visited by Australian fur seals, whales and dolphins, as well as many migratory waders and seabirds.