This clip shows young guys in just shorts and vests diving into a pool with sharks, and then trying to swim across as fast as possible before the shark spots them! insane.
British Pathe - "'WARE SHARKS!"
I'd find it scary just being in a cage I think.
You might have already seen this? It's a great wreck diving video by British Pathe from 1950 - British Pathe - DIVING ON A WRECK
It's pretty creepy but the detail is remarkable considering how old it is!! At the bottom of the screen you can flick through cool second-by-second photos of the vid...