A variety of small one-man [[watercraft]] that utilize a bicycle-like pedaling system for propulsion.  Traditional water bikes are setup with a bicycle-like frame that is supported by pontoons on either side.  Peddling powers a propeller that moves it forward and the handle bars control a rudder for steering.  Some water bikes utilize hydrofoils instead of pontoons, though these also feature an electronic assist to maintain speeds necessary for the hydrofoil to stay up.
water bike