The challenge is what was making it exciting. You don't want to do anything that's too easy or that you know that you can pull off, otherwise it's really not worth doing. -Robert Rodriguez

APK WOD 7-20-12

Technique work- Rolling

The roll is one of the most technical movements in parkour, and requires lots of practice. When starting, a soft surface should be found to roll over, such as grass, a rubber playground surface, or similar.

The important considerations are getting your head out of the way, rolling from shoulder to hip, and remaining smooth throughout.

Check out this Parkour Dictionary entry to seean example- http://www.americanparkour.com/learn/parkour-dictionary/426-the-roll