Are you talking about fishing float tubes? If you are please don't do it. The flows of the Yak are very high right now and many snags have been moved around the river . You would be better off renting 3-4 big rafts . The only campground I know of that could handle a large group is the KOA in Eburg.. Right on the river with a couple of decent holes and banks to hit downriver to Irene or further to Ringer.

Be Safe

Paul