You Better BELIZE It!

We’re headed to BELIZE in November!  We just booked out trip last week (using miles of course)…and now comes the fun part…nine months of planning.
Since the snorkeling is good and there are caves to raft through…we’ve decided we need a waterproof camera. Does anyone have any good recommendations? 
Here are two of the cameras we’re currently looking at…we’re hoping that some good deals come up between now and our trip...
Pentax Optio W90:


Fujifilm FinePix XP10: