Have you ever tried the Pumperbike?

The Pumperbike is a environmental friendly water tool that came out in the market a few years ago but not quite divulged yet. It is also called "Human-Powered-Hydrofoil". By jumping up and down on the device, as you can see in the movie, it generates the energy on the hydrofoil to push you forward.

To start the Pumpabike working, you need to launch from a stable place giving it a good kick off in order to provide the initial speed. Then, you have to start jumping like a freaky kangaroo by using a coordinated rhythm which is quite a big challenge to do. Generally the kangaroos collapse after a few minutes because it is just too exhausting :o)!! You need to be quite fit and with good efficient techniques to keep it going longer than five minutes. But it can also be efficient if you can take the wave of a passing boat because it would make you go for longer time. Remember that if you stop jumping you will glide for a short while before sinking and so you will have to swim back to land to start again. The main body of the device floats so it is easy to paddle around. It is more suited to use it on calm water and with little wind. The Pumpabike is a great water tool for having fun with friends and of course for keeping you fit!