Human-Powered Hydrofoil

Days ago, a friend sent me an interesting video clip which was about a watercraft that let its riders to hop on the surface of water. After doing some research by googling, I found this vechicle has been categorized as human-powered hydrofoils.

The following two links give great collections of related information:

http://www.human-powered-hydrofoils.com/
http://snorlax.lampi.org/mike/hpv.html