Parkour in nature

Maybe the coolest freerunning video I've seen:

Red Bull relocated four of the world's top free runners from their urban turf to the place where parkour got its start: the great outdoors.

Obstacles abound as far as the eye can see along the turquoise waters and elephant sized rocks of the Verzasca Valley in Switzerland - making it the perfect parkour playground.

My favorite in the video has to be Yoann "Zephyr" Leroux: