This human powered hydrofoil allows you to glide across the water just by jumping on it. There are a few modifications with different names – Aquaskipper, Waterbird Glide, and others, but they all use the same principle. It’s quite an old invention, but this type of watercraft is not wildly available in the mass market for some reason.
How does it work? This watercraft with reduced drag force and flapping wing propulsion gets its propelling force completely from the hydrodynamic lift on its hydrofoils. Simply put, when the rider jumps, the force of his weight causes the back foil to change its angle back-and-forth generating the propulsion, which pushes the vehicle forward.
While everything about this device seems to be impressive, there are serious drawbacks (which may explain the lack of popularity). If you stop jumping, eventually, it will sink. It does not float by itself and it is not possible to start from the water. You will need to start from a dock, jetty or boat. If you end up in the water, you will have to swim to the closest surface. Of course, when you gain some experience, you will be able to avoid ending up in the water.