I've tried searching this site as well as just a regular google search, but can't seem to find out what WR would be good, if any, for tubing. I'll be on the boats this weekend and while there is no need to wear a watch, it had crossed my mind. I've blown out my ear drum tubing before though, so I'm wondering if any watches will withstand a violent smash into the water. Just curious. I have a Mako and a G Shock that are both 200 WR, but it doesn't seem like that's enough...nor would I want to take the Mako for that ride in any case.