Riding the back of the river. Through the boat's thin shell, you can feel the power of the water. Every current, every ripple and every wave is part of the experience. Even in the calmest waters, you are part of the river. And the feeling is something that can never be put into words. Except to say that once you've tried it, you'll never be quite the same. Kirk Baker, Aspen Kayak School P.O. Box ...