I just love gadgets like this. Reminds me of an aquatic version of the Segue.
Riders operate the "Pumpabike" by bouncing up and down on a small platform at the rear of the contraption, whilst holding onto a steering column at the front.
In doing so, they can reach speeds of up to 16 knots (30 kilometres per hour), says inventor Mike Puzey, who is based in Johannesburg, South Africa. Puzey’s design has no propeller and involves no pedalling. Instead, thrust comes entirely from the hydrofoils beneath the craft.
