The largest coral reef system in the world is composed of 2900 individual reefs and 900 islands stretching approximately 133,000 square miles. If the mere size is hard to comprehend, take into account that you can see this massive structure from outer space! The Australia Zoo is another stop that any trip to Australia cannot do without. The home of the Crocodile Hunter Steve Irwin, this complex is home to some of the countries best known inhabitants such as the Koala Bear, Tasmanian Devils, and of course crocodiles just to name a small few. $1199 with air and a chance to visit these two memorable spots should make Australia a must see.