Hookset, it's a great camera. Don't know if you got the W-60, but I'm very happy with Pentax. The newer versions are water resistant to something like 10 feet, the older versions to something like 25 feet.

I would go to Wally World and buy a cheap case. As long as it has some cushioning you should be fine. As for floating, nope.. they sink. You can get an outside enclosure or something to make sure they float, but IMO they're not worth the money and too cumbersome if you are actively fishing and moving around. Make sure your wrist strap is always around your wrist if you are in a tough environment, and you'll be glad you did. Good luck with it.