If you want to work off the excess of the previous night’s feeding and drinking frenzy in Cairns, here’s a chance for some good old fashioned cardio. Cairns Zoom is a zip line that could double as the set of America Ninja Warrior. Don’t even try to not look like an ape on this 65-foot vertical obstacle course. Even if you’re wearing chic ballet slippers, you’ll be hard pressed to preserve your dignity when you’re squeezing your posterior through a barrel. Does my butt look big in this harness?