Parkour is awesome, period. It's really fun, and if you've never practiced, I recommend you go out and at least try some basic stuff. Or, you can get into a group, and they might have sessions in your area, which is even more fun, cause you get to learn from all the experienced people. I've been into it for just about a year, and you should seriously try it out if you never have before. (Also, just to let you know, some traceurs will get on you pretty bad if you use parkour as a verb)