Parkour is an activity with the aim of moving from one point to another as efficiently and quickly as possible, using principally the abilities of the human body.[2] It is meant to help one overcome obstacles, which can be anything in the surrounding environment—from branches and rocks to rails and concrete walls—and can be practiced in both rural and urban areas.
parkour is used when there are alot of obstacles( like buildings, rails, gaps) between two points and you want to traverse the two points the quickest. your parkour skill determines how fast you can go
similarly, tribes is dotted with bridges, bumps, little hills, etc that are the obstacles which lay between you and wherever youre trying to go. skiing is the skill that determines how fast youre going
parkour is really the best to watch when some guy is being chased by cops. and then the parkour guy is hopping about inbetween shit and making an awesome escape
skiing is really the best when youre goin mach 5 and being chased by lots of people...