Originally Posted by Bekologist
Pentax Optio W10. Waterproof, no moving lens parts, shoots fine quality stuff. small and durable. It does take proprietary batteries which is its only drawback, but do charge up quick.
+1. You could also find an older Optio WR33 or WR43 somewhere. They have the same waterproof, no protruding zoom design as the newer W10. Less megapixels (3+ and 4+, respectively), but they're relatively small, built to last and use AA batteries.
--J