Canyon Race Helmet Cam (With Backflips)
This is another great GoPro helmet-cam video, featuring a rider tackling what looks like an insanely high (and narrow) race down sandstone ridges. A part of Red Bull Rampage, it looks like each participant gets to pick their own path down. Insanity.
Watching this at high quality and full-screen is a must. Unless, you know, you do backflips over canyons in your spare time. In which case, playing this video on your phone is probably good enough.