A different paddle boat.

[Ian McColgin]

What a gas. Check out

http://www.wavewalk.com/

[Concordia..41]

Hyper Stable

All the boat's buoyancy is distributed along its sides, while you use your legs as a Natural Active Suspension
Full Exercise

Activate your whole body, reduce fatigue and lower impact
http://www.wavewalk.com/JB%20III%2017.jpg

You first tongue.gif

[Hwyl]

Some of the scientific arguments are so specious, I'd be proud of them myself.

[skuthorp]

Paddle powered PWC! How long before someone hooks an OB to it?
:D