Parkour.

Parkour is a self-led movement practice where practitioners use only the abilities of their bodies to interact with obstacles in any given environment. With roots in military obstacle course training and martial arts, parkour includes flipping, running, climbing, swinging, vaulting, jumping, plyometrics, rolling, and whatever is suitable for a given situation. Parkour is an activity that can be practiced alone or with others, and is usually carried out in urban spaces, though it can be done anywhere. It involves seeing one's environment in a new way, and envisioning the potential for navigating it by movement around, across, through, over and under its features.