Slacklining is a dynamic balancing exercise. It refers to the act of balancing or walking across a length of nylon webbing strung between two anchor points. There are a few simple rules to get you started. Focus on a fixed point at the end of the line, place your feet flat and straight on the line, and hold your arms out above your shoulders in order to keep your balance. At first, the line will sway quite vigorously from side to side. But don't lose heart. With a little practice, you'll soon be able to take your first steps along the line and start to defy gravity.
Source: www.mobilesport.ch