World's Largest Coral Reef - Australia

The Great Barrier Reef is the world's largest coral reef system.

The reef is located in the Coral Sea, off the coast of Queensland in north-east Australia.This Coral 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).