If you’ve ever wanted to walk a tightrope high above the circus floor but got nervous just thinking about it, stack lining may be for you. Slacklining, an increasingly popular practice in the balancing arts, involves walking across a bouncy, highly-tensioned, single piece of webbing that may be only a couple inches off the ground. Most of us have an inner equilibrium that can enable us to perform extraordinary balancing feats, but getting up on the line can still be scary. Remember how intimidating it seemed to balance on a bicycle without training wheels? Now think how easy it turned out to be. Walking a slackline just takes confidence and a bit of practice.