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Great Barrier Reef

The Great Barrier Reef is the only living organic collective visible from Earth's orbit. The Great Barrier Reef, off the east coast of Australia, is one of the wonders of the natural world - it is the world's largest coral reef ecosystem.

Coral on the Great Barrier Reef, Queensland, Australia - I learnt to scuba dive today and now this looks achievable...

Seven wonders of the natural world – in pictures

The Aussies are justifiably proud of the largest coral reef on earth – the Great Barrier Reef. It can be seen from space and is believed to be the world’s biggest single structure made from living organisms. Composed of some individual reefs and 900

Heart Island, Great Barrier Reef, Australia

Aerial view of Heart Reef, Great Barrier Reef, Queensland, Australia I loved visiting the Great Barrier Reef.an amazing place!

Giant Clam, Great Barrier Reef - ©Andrew McGregor - www.flickr.com/photos/akmcgregor/4756498943/in/photostream

Great Barrier Reef, Giant Clam - they have to be seen to be believed. I loved the beautiful velvet interior, and the gorgeous colours.