The Great Barrier Reef is the world’s largest reef system, with 3,000 reefs running 2,300 km along most of the state of Queensland’s coast. Credit: Nickj/CC BY 3.0

By Kitty Stapp Reprint | | Print |

The Great Barrier Reef is the world's largest reef system, with 3,000 reefs running 2,300 km along most of the state of Queensland's coast. Credit: Nickj/CC BY 3.0