While the camera is in its waterproof casing, the "ON" button protrudes and is too easily pushed inadvertantly (such as when packed in a shore bag). If the button is held down by some object pressing against it, the batteries will soon be drained. If there are any pictures in the memory, they will also be lost. After such a bad experience I made an improptu "carrying container" out of a plactic peanut butter jar.
Cons: Poorly designed "ON" button
This review was written in the old system and had content requirements that are different than reviews written today.