Slacklining In Sydney

SYDNEY, AUSTRALIA - DECEMBER 21: Luke Sarantos checks his harness and makes final preparations to a slackline between two cliffs at Diamond Bay on December 21, 2014 in Sydney, Australia. Slacklining is a balance sport in which participants walk on a flat nylon webbing anchored between two points with the tension adjusted to allow for slack, providing an experience similar to that of walking on a trampoline. Highlining is a style of slacklining where the two anchor points are set up with significant elevation from the ground or water. (Photo by Cameron Spencer/Getty Images)