Zorbing: Why should hamsters have all the fun? Zorbing, first developed in New Zealand, involves hanging out in a giant plastic ball and rolling down a hill. It’s not as painful as it sounds, though: there’s a smaller ball within the large one, something that makes it a shock absorber. You have two options here: strap yourself in, or go free and let yourself “walk” around, encased in water. Which one will you choose?!