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 Indian Ocean borders the western coastline of Australia.
The Indian Ocean
The Indian Ocean border Australia's Western coastline, while the Southern Ocean borders the southwest.
The Atlantic Ocean is the waterway that borders Portugal's western and southern coasts.
The state on the west coast of the United States with the longest coastline is California. California borders on the Pacific Ocean.
The Southern Ocean, also known as the Great Southern Ocean, borders Australia's southern coastline.
The Indian Ocean borders Australia's western coastline, as well as the northwestern coast The Timor Sea is the branch of the Indian Ocean which meets the northwestern coast.
Morocco is a country in northern Africa. Its coastline is the North Atlantic Ocean and the Mediterranean Sea. It borders Western Sahara and Algeria. It is near Gibraltar.
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.