I'm about to link you to a re-blogged tumblr post. Tell me what you think and what would you have done if this happened to you?

Swim as fast as possible.

Tell those fuckers to get the hell out of there!

I would get the hell out of there and tell the people with sharks behind them to save themselves

Swim back to the barco as fast as possible... the tubarão will eat them first since they are closer.

HOLY SHIT. That picture is the very definition of the phrase "When you see it you'll shit bricks"

I would've have swimmed as fast as possible and/or told them to get the fuck outta dodge. Like seriously.