you may have overlooked the Pit Bull Hoverboard in Back to the Future, it did work on water... http://backtothefuture.wikia.com/wiki/Pit_Bull_hoverboard http:/

you may have overlooked the Pit Bull Hoverboard in Back to the Future, it did work on water... http://backtothefuture.wikia.com/wiki/Pit_Bull_hoverboard http://backtothefuture.wikia.com/wiki/Pit_Bull_hoverboard