Port Douglas, Australia
As if easy access to the Great Barrier Reef wasn't enough of a draw, two world-heritage ecosystems sit side by side at this port that has it all. The primordial Daintree Rainforest is 100 million years old, filled with bats, frogs, marsupials, butterflies, and the world's largest moth. Take the Skyrail to Kuranda, or hop on the Bally Hooley Train. Delve into Aboriginal heritage at the Douglas Shire, ancestral homeland of the Kuku Yalariji tribe. Mountain streams flow through Mossman Gorge, and among the standout adventures are crocodile hunts and 4WD safaris.