The Pacific Ocean
The Indian Ocean
Atlantic
No country can border a coastline, especially the East coast of Australia, a shoreline of the Pacific Ocean.
The Indian Ocean borders Australia's western coastline.
The Southern Ocean, also known as the Great Southern Ocean, borders Australia's southern coastline.
To the west, the Indian Ocean touches (not borders) Australia's coastline. To the east, it is the Pacific Ocean. Three seas border Australia's northern coastline: the Timor Sea, the Arafura Sea and the Coral Sea.
The edge of land that borders an ocean is called the coastline.
The ocean which borders Australia's western coastline is the Indian Ocean.The arm of the Indian Ocean that touches the northern part of Western Australia is the Timor Sea.
The Antarctic Peninsula is surrounded by the Southern Ocean.
The Pacific ocean.
The state on the west coast of the United States with the longest coastline is California. California borders on the Pacific Ocean.
The Indian Ocean borders the western coastline of Australia.