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The Great Barrier Reef

Oprah, Gayle King and 92 Ultimate Viewers experience the beauty of Australia's living, breathing natural wonder.
 
Oprah visits the Great Barrier Reef

In the Coral Sea, off the coast of Queensland, the Great Barrier Reef is one of the seven natural wonders of the world. The reef is formed when coral polyps secrete limestone.

Photo: © Tourism Australia
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