While nude tubing sounds fun.. I'm going to have to go with paintball. I mean hell, less trouble with girlfriends and it looks like more than a few of us need to shed a few pounds.. so the excersize could help.
I'll own you. Heheh, I need to dig out my old cammo and extra paint carriers.. Infantry support here. ;)
Man.. LS make a contest or something where if you get so many signups you get free plane tix to AZ for some LS paintball.
-Phil