The German designer has an idea green. Gasoline is more expensive but has found the solution for those who wish to continue to make the jet ski without spending a drop of oil. He replaced the tank and the engine through a wing of Kite Surf. We can call the scooter kite surf or wind scooter. The Nereus is submersible. Its wings will fly to toe and sailing is controlled with your hands.
The designer does not announce the maximum speed but it ensures that the scooter is designed to move at speeds high enough. Obviously, one can imagine that the more the wind will be stronger and more speed edge will be high.

Here's the concept directed by Mathias Koelher in photos