Re: paper work getting wet
Dunno if this is a thread jack or not, but I almost never bring ID with me boating. As far as I can tell, its not required in North Carolina for folks old enough to not need proof of boater certification. I've had a few "safety checks" as well, never been asked for ID but always for the registration. Is ID really required in some states?
As to the OP, I use ziplock bags for the registration (inside a "marine ammo box") on my big boat, just the ziploack bag with my fire extinguisher in the jet flea, and in "otter" box with my phone in the little boat.