We have a Vivitar Vivicam that does great underwater pics and takes videos. It has a rubber housing so it's very durable. We used it on our Dolphin Swim, while parasailing and using jetskis. It is more of a true underwater camera than a dry land camera and is fairly inexensive. You can find them on
Amazon.
We also have a Kodak Playsport. I wouldn't say I LOVE it tho as we've had spotty performance. It's just OK. DH got it for me to be able to take pics & videos of our DS at his swim meets. It doesn't have much of a zoom for that tho & the still pics are sometimes blurry. You have to hold pretty still. DS used it in the pool to take a few pics & videos and they're OK if you're pretty close to the subject. I also felt that the battery life was fairly short so we had picked up a spare battery to have too. We're actually on our 3rd unit tho!! The first one stopped working after only ONE day.

It just wouldn't turn on. Took it back to
Best Buy & exchanged it. The 2nd one was not used a WHOLE lot and it wigged out just a few days after the Best Buy return policy was up.

We were on vacation at HHI and had gone out on a watersking / tubing excursion and when I took it out to try to video DS learning to waterski it was BURNING UP HOT!!

It would not come on. I had charged it before we left on vacation and this was the first time I'd had it out. So I took the battery out, let it cool off & tried the other battery. Same thing. Shortly after I changed the battery it got hot again and still would not turn on. Since it was past the Best Buy return date I contacted Kodak and they had me send it in for repairs. They determined it could not be repaired and replaced it wibth a refurbished unit. This one has done OK but it's not been used a whole lot as I am not overly happy with the zoom for the swim meets. The meet facilities are too big & we can't get close enough in most cases to get a good video. I had wanted something to slip in my pocket and this DOES fit in my pocket so I'll give it that. We will bring it on our Med cruise this summer but it's really not as good as I would've liked. It's OK I suppose for a $130 or whatever. But you kinda get what you pay for. DH's Droid phone takes just as good of a video - but of course it's not waterproof!

I'm sure if we weren't on our 3rd one in less than a year I'd have less whining to do about it.