Great Barrier Reef, Queensland, Queensland
The Great Barrier Reef is the world's largest reef system composed of
over 2,900 individual reefs and 900 islands stretching for over 2,600
kilometres (1,600 mi) over an area of approximately 344,400 square
kilometres (133,000 sq mi). The reef is located in the Coral Sea, off
the coast of Queensland in north-east Australia.