Great Barrier Reef

Coral reef in Queensland, Australia

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 1400 miles over an area of approximately 21500 square miles.

 

Great Barrier Reef. (2015). Retrieved on February 19, 2015, from en.wikipedia.org/wiki/Great_Barrier_Reef.

Great Barrier Reef. (2015). Retrieved on February 19, 2015, from www.greatbarrierreef.org/.