2. The Great Barrier Reef is the world'sThe Great Barrier Reef is the world's
largest coral reef system,largest coral reef system,
composed of over 2,900 individual reefscomposed of over 2,900 individual reefs
and 900 islands stretching for 2,600and 900 islands stretching for 2,600
kilometres over an area ofkilometres over an area of
approximately 344,400 squareapproximately 344,400 square
kilometres.kilometres.
The reef is located in the Coral Sea,The reef is located in the Coral Sea,
off the coast of Queensland in northeastoff the coast of Queensland in northeast
Australia.Australia.