You can't use a camera for most water, due to most of the time the water is very murky.
I have done this years ago, before they even had a name for it.
Been shown this technic by a couple of my relatives from the outskirts of Pensacola FL.
Believe ya' me!...My uncle was one special! kinda individual! :blink:
...When I seen him for the first time doing this, and pulling up out of the water, a 20+ lb. cat! I just about!...well you know.
Needless to say. At the age of 13, it didn't take me long to get into the water and learn how wrangle some of those behemoths out of the murky depths. A few things that enter your mind doing this, is possibaly putting your hands in the vicinity of a snappin' turtle, plus...your swimmin' with gators and cotton-mouths!
I haven't really attempted this for a number of years now. But, wouldn't mind bringin' back some great cajun memories, and try it again.
Oh yeah...those cats do clamp down pretty good. But, it's a little like winnin' a prize fight,...ya' gotta bloody some knuckles!