Great Barrier Reef
It’s the world’s largest living structure, comprised of more than 3,000 coral reefs, 600 islands and 300 coral cays, and it’s home to thousands of tropical fish species as well as sharks, dolphins, turtles, dugongs and more. Needless to say, you could swim, surf, snorkel, sail and scuba for months and still not see everything this amazing part of the world has to offer.