If you thought wing-suit base-jumping was cool, wait till you see the stunt by Swiss aerial daredevil Yves Rossy.

With a jet-powered pack strapped on his back, the dashing Jetman jumped from a helicopter and flew across the Grand Canyon, a feat more dangerous than his previous adventures with the backpack.

The jet pack does not have any controls except for a grip throttle and the only instrument on it is an audible altimeter. Rossy is the only man alive who can control it.