Re: Cool vids...again.
I've jumped off a lot of things, my high school jock identity was extremely tied to being a springboard diver on the school team. Did some indoor platform stuff up to about 5m, but that was the max the ceiling allowed. One summer, 1990-ish, my brother and I found a riverside cliff in Missouri by my grandparents house, climbed up it with a long surveyor's tape measure and kept jumping from greater and greater heights. We finished at 70 feet (20 meters, give or take). Scariest shit I've ever done. But that's the secret: you work up to it...and it's never not terrifying.