Parkour

Can't it be both since if you could show it to those who also parkour and judge the ability and creativity of the practitioner, they can develop it as a sport where people could compete. It can all be a discipline as well since Parkour can not only be applied to just the parkour activity itself but to other activities that need transition from one place to another. I wouldn't mind being able to parkour while skateboarding since there are just some ledges and obstacles that are not easily accessible unless wall and fences are traversed ^_^ Now you can call it a "run" when you do skate in totally urban areas ^_^