I picked up a belly boat recently. It has one of those inflatable seats and I'm thinking of putting some short oars on it for bigger lakes. I'm considering something more substantial, though, and I was wondering about those inflatable boats/kayaks that are substantial enough to take on whitewater (not that I would). Do any of you have experience with them? I am talking about those in the low to mid hundreds. Sure would be a lot more portable to those mountain lakes than a kayak or pontoon would be.