Straight from New Zealand (who also gave us bungee jumping) this 30 seconds of fun is exactly what it looks like! It involves climbing into a giant inflatable ball and careening down a hill. You experience maximum G-force while rolling down a hill at speeds up to 25 mph. You can either ride strapped in or free in a shallow pool of water. There are currently only 10 locales worldwide. The first U.S. zorbing site opened this past fall in good ol' Pigeon Forge, TN, www.zorb.com/smoky. Road trip anybody? I thought this video sums it up well, sorry it's so long. It's worth checking out!