This is TURRRRIFYING. I don't know how people keep their cool in this situation. I couldn't do it. I'd fall right off the board, piss and shit myself and then die. It would be an embarrassing news conference for my loved ones.
According to the YouTube description here's how it all went down:
Mike Durand of Swellmagnet.com put on his GOPRO Cam/helmet and went in search of Great White Sharks off of Manhattan Beach, El Porto. After spotting one with the cam off he thought is day was over. Number 2 swam into the picture and ended up scaring the shit out of him. It's all fun until someone loses an eye, (or leg).
H/T Big Lead