as a kid we used to jump off a bridge (long since torn down)into Lake Washington. Must have been in the 120 range easily. SScared the crap out of me. Nobody dived off it, but jumping wasn't a problem. 50ft is easy.
Same, same here. As kids in Boston, "Townies" used to swim at the "Low Bridge" that connects the North End to Charlestown. We'd swim over to the Northeast Artery Bridge adjacent to the old Boston Gardens, climb the steel girders (and we were wet!), and jump approx 100 feet into the Charles River. All the kids did it... of course, we had to take turns keeping an eye on "Sully", our less skillful swimmer!