Great Barrier Reef

     One of Australia's most remarkable natural gifts, the Great Barrier Reef is blessed with the breathtaking beauty of the world's largest coral reef. The reef contains an abundance of marine life and comprises of over 3000 individual reef systems and coral cays and literally hundreds of picturesque tropical islands with some of the worlds most beautiful sun-soaked, golden beaches.

     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. This reef supports a wide diversity of life, and was selected as a World Heritage Site in 1981. CNN labeled it one of the seven natural wonders of the world.

 

                                                                           

Source: http://www.greatbarrierreef.org/

            http://en.wikipedia.org/wiki/Great_Barrier_Reef

            http://www.oceanleadership.org/2009/outlook-poor-for-great-barrier-reef/

            http://www.australiatravelonline.net/australia-destinations/australia-beaches-islands/great-barrier-reef-eden-of-underwater-world/418/