I have an original Optio WP, and it is great for pool, snorkeling, and rafting shots. That said, the shutter lag can be horrific and the lack of a viewfinder makes shooting in bright light hit or miss; the 3X zoom is underwhelming, wide ain't wide and tele ain't tele. Still, at the end of the day, a very capable little camera -- and fun to shock others with, like the guides on a rafting trip down the Pacuare when I took this shot with my Tevas in it:

And while you're along on a wet ride, it takes decent close-ups, as of this spider in a flower:

and scenics, of the baggage raft rowing past a waterfall:

...not to mention (but there I did) casual pool shots of the nephew:

All the best,
Chris