Water Cycle
Enjoy the water of the great outdoors while getting some exercise on the Water Cycle ($3000). It features a smooth pedal crank that drives a 15-inch, two-blade propeller through the water, letting you reach speeds of up to 7 mph. The rudder is controlled by the handlebars, making for smooth turns, while the craft's fiberglass-covered foam core hull keeps you upright and stable as you pedal your way to freedom.