Really hard? Well, buckaroos and buckarettes, this Nikon might be worth a look.

Nikon 1 AW1

Have been using a weatherproof (but not submersible) camera myself and find it liberating to not stow it away every time it's raining or blowing dust. This thing should survive nearly anything. My main quibble: no viewfinder.

Cheers,
_________________________
--Rick