Great Barrier Reef

The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres over an area of approximately 344,400 square kilometres. The reef is located in the Coral Sea, off the coast of Queensland, Australia, separated from the coast by a channel 100 miles wide in places and over 200 feet deep. The Great Barrier Reef can be seen from outer space and is the world's biggest single structure made by living organisms. This reef structure is composed of and built by billions of tiny organisms, known as coral polyps. It supports a wide diversity of life and was selected as a World Heritage Site in 1981. CNN labelled it one of the seven natural wonders of the world in 1997. Australian World Heritage places included it in its list in 2007. The Queensland National Trust named it a state icon of Queensland in 2006.

Read more in the app

Stan debuts jaw-dropping trailer for Great Barrier Reef documentary Revealed: Reefshot

Explore Australia’s Tropical Region, from the Great Barrier Reef to the Rainforest

Explore Australia’s Tropical Region, from the Great Barrier Reef to the Rainforest

Bachelor stars Jimmy Nicholson and Holly Kingston enjoy a cruise on the Great Barrier Reef

Billie Eilish Teams With CoralWatch to Support Great Barrier Reef Conservation

Aussie schoolboy, eight, reveals how he enlisted Billie Eilish to help save the Great Barrier Reef

Rachael Finch dazzles in a bikini as she enjoys a day at the Great Barrier Reef with her kids

Miles Teller and wife Keleigh Sperry enjoy tropical retreat to the Great Barrier Reef for Christmas

Russell Crowe to narrate a documentary about Australia's Great Barrier Reef