If you feel like reducing your carbon footprint and want to instead increase the use of your literal footprint, you'll want to take the WiTHiN human-powered boat out for a spin the next time you are on the open seas.
Created by Greg Kolodziejzyk, the vessel is fueled solely by the spinning of pedals located inside the cockpit. The body of the boat is made primarily from carbon fiber, making it extremely lightweight and easy to move without a traditional motor. It has been reported to get up to a speed of 3.7 knots, but of course this would depend on how fast you want to pump your legs.
Forget spinning class -- taking this ship out for a sailing trip will give you more than enough exercise for the day.
Pedal-Propelled Enclosed Kayaks
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