bring quads
we did jet skiing on sat and rode to the top of hahns peak on sunday with quads. it was fantastic.
beetle has been through there pretty good, lots of stuff for you to burn but still very pretty. you can rent paddle boats over at the marina and maybe some canoes and all those non combustion like activitys
you will love it.
also, make sure you give your 2 sense to the Forrest service. they are trying to close some riding areas down up there to us sledders.