Intro...

The Great Barrier Reef is composed of over 2,900 individual reefs and 900 islands. It stretches for over 2,300 kilometers. Not only is the reef one of the largest in the world, it's marine park is the largest as well. The reef is located near the Coral Sea, approximately two-thirds off the east coast of Queensland, Australia. It reaches from the Torres Strait, to the Bramble Cay and finally to the south coast of Papua New Guinea. (6)

Map of The Great Barrier Reef, from the 2012 Reef Protection Plan (3)

Biodiversity in the Great Barrier Reef, Google Images Tourist Website

Fun Fact #1
 Considering the enormous size of the GBR, how many football fields would it take to cover it?

It would take about 70 million football fields.