Abstract: A kayak having a cockpit containing a seat and a set of rotatable of pedals, the kayak propelled by a propeller, the propeller driven via a linkage by the set of rotatable pedals. Preferably, the rotatable pedals are mobile fore and aft substantially parallel to a center line of the kayak, and the drive shaft to the propeller is able to be extended and retracted to maintain the transmission of power and rotation from the rotatable pedals to the propeller. Also preferably, the cockpit containing the seat is molded into an upper deck of the kayak such that a hip of a user is substantially fully below the upper deck, and the cockpit has substantially no overhangs, such that, after capsizing and righting of the kayak in water, substantially no water is retained in the cockpit. The kayak also preferably includes a torque-tube steering system that permits a user to steer with either hand, and without interrupting the propulsion of the kayak on the water.