15 degrees south, 150 degrees east is located in the Coral Sea, which is part of the South Pacific Ocean.

Here's a breakdown:

* 15 degrees south places it in the southern hemisphere, roughly halfway between the equator and the Tropic of Capricorn.

* 150 degrees east places it in the eastern hemisphere, in the western part of the Pacific Ocean.

This location is close to the northeastern coast of Australia, and it falls within the geographical boundaries of the Coral Sea. The Coral Sea is known for its incredible biodiversity, including the Great Barrier Reef, one of the world's most extensive coral reef systems.