The Indian Ocean
The Antarctic Peninsula is surrounded by the Southern Ocean.
The Atlantic Ocean is the waterway that borders Portugal's western and southern coasts.
The Indian Ocean border Australia's Western coastline, while the Southern Ocean borders the southwest.
The Indian Ocean borders Australia's western coastline.
The Pacific Ocean
Atlantic
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 twelve Apostles are in the Southern ocean, off Australia's southern coastline.
The state on the west coast of the United States with the longest coastline is California. California borders on the Pacific Ocean.