The power of bicycles is so impressive that one can understand people use it in mysterious, outstanding ways. Everybody have in mind bikes are suitable for solid surfaces like roads or paths. But what Judah Schiller invented in the San Francisco bay was amazing: Water bikes.
The idea behind this was to create a sustainable way of transport competing with rowboats and avoiding sometimes unnecessary detours. The fact which allowed this was the need he had to cross the bay bridge between Oakland and San Francisco to go to work. He had done so on boat and was tired. The first product was BayCycle, a portable floating device to pedal on water.
This initial idea evolved into a mix of bike and catamaran in which pedaling has an essential role. When a person pedals, it moves a screw which allows sailing. On the other hand, the handlebars are used as rudder. If you want to stop, just use the backpedal brake similarly as the Netherlander bikes.
Moreover, their creator claims these bikes are folded in 10 minutes in order to easily transport them, and carry it comfortably. It is no wonder that this new kind of bike has enjoyed success and more companies have decided to produce their own water bikes.