Nothing gives Australia every opportunity to outdo itself like a three-city sweep. A natural double act few destinations can equal, Cairns opens with the Great Barrier Reef on one side and ancient rainforest on the other, both breathtaking in their own ways. World-class theme parks are impossible to distance yourself from, let alone families and thrill-seekers. The Gold Coast changes the mood completely. With its iconic skyline, mountain getaways, and vibrant food and music scene, Sydney rallies the whole affair to a close. This is Australia in all its wild, colourful and unapologetic glory, from reef to rooftop, rainforest to rollercoaster.