+1 for Nikon coolpix Aw130. i have tested it pretty thoroughly. i would say i pretty much always have it in my pfd.
Nikon COOLPIX AW130 Rugged Digital Camera | Waterproof, Shockproof, Freezeproof Camera
I keep it in a coozy in my front PFD pocket, secured with a mini coldshut to its leash.(or a mini nite-ize locking gear biner would work)
Amazon.com: Nite Ize LSBM-01-2R3 S-Biner Micro Lock, Black, 2-Pack: Home Improvement
literally pull, point and shoot, even in the middle of the river above a drop or elsewhere in less then recommended circumstance. It has shot many, many great photos for me. for what it is. for a point n shoot, it exceeds. of course the zoom is limited, and all that, but battery life is great, at least several days out between charges, its waterproof, durable,takes great video, and is reliable.. and takes no switching when your settings are pre-set.
one obvious negative is no lenscover, but that is one less thing to get gunked up with sand like my old olympus did. (that camera took crap pictures and was often fogged on the lense. good riddance.)
My lens cover fix (at the Salt put-in on the fly) was the coozy in the greenjacket pocket.and it works so well i never replaced it.
all that being said, i would love a legit compact DSLR in a Pelican box to start capturing phenomenal imagery. some Lmyers shit.