Aerial, wide angle view of the Great Barrier Reef, Great Barrier Reef Marine Park, Queensland, Australia. The Great Barrier Reef is a complex of coral reefs, shoals, and islets in the Pacific Ocean off the northeastern coast of Australia. It is composed of over 2,100 individual reefs and some 800 fringing reefs around islands or bordering coastlines; some are dry or barely awash at low tide. It has been designated a World Heritage Site by UNESCO.
Aerial view of the Great Barrier Reef
The Great Barrier Reef is sometimes known as the “rainforest of the sea” because it is home to so many species and because it is in danger.