The Aussies are justifiably proud of the largest coral reef on earth – the Great Barrier Reef. It can be seen from space and is believed to be the world’s biggest single structure made from living organisms. Composed of some individual reefs and 900
Great Barrier Reef - Featuring 400 types of coral, types of mollusk, and species of fish, the Great Barrier Reef is the largest reef system on Earth. It was named a World Heritage Site in and is one of the most popular tourist destinations in Australia.