2.  Many tourists, hot and nice water  Divers  Very popular destination for tourists, especially the Whitsunday Islands and Cairns region  Daily boat turns  Tourist administration takes a daily gift from the tourist. The money goes to research for the Great Barrier Reef.

3.  The top layer is about 8000 years old  Sea-level has changed.  The Australians Aborigines have lived in the area for 40 000 years.  James Cook exlpored the Sea

4.  Pollution and degradation of water.  The quality of water has deteriorated in recent years.  Deteriorated water  algae blooming.  April 2010 a Chinese ship had tried to take a shortcut across the reefs. The ship leaked oil that damaged the rare corals.

5.  Around 1625 fishing arts  Close to 330 arts of squirt.  5 000 mollusks documented in the reef.  Clownfish, Red bass, Red-throat and Minke whale.  Around 22 º - 28 º

6.  Biggest in the world  2900 individual reefs  900 islands.  2 600 kilometers long  Making a surface over 344 400 sq.  Australia / Queensland  Asia / Pacafic Ocean  Largest structure built by living organisms.  Space.