This is interesting: Take your motorhome out on the lake with the
RollerBoat.
I guess this was featured at the last FMCA meet in Perry, GA (
Mike W. of Roadtreking discusses it in a podcast).
The rear wheels sit on some rollers (like a Dyno) and drive the propeller so you just use the gas pedal for speed..!?
This is certainly a different option than purchasing the
TerraWind amphibious RV.