Britain's rivers are a disgrace. Tom Heap gets up close with a canoe trip along the Cam.

Whitewater kayaking and the rapids are my sanctuary It's a thrill to go from my Washington, D.C., office to an outdoor adventure. I can run the rapids or just paddle the Potomac River, while ...

That start was in Butte, Montana on Silver Bow Creek -- the starting point of a 1300-mile trip through the Columbia River basin to the Pacific Ocean. Lester made the trip in a two seat canoe.