Aug 31, 2004 — You can find challenging whitewater rapids on rivers all over this country. But the U.S. Freestyle Kayaking Association chose one wave on the Black River in Watertown to test its best kayakers. The winners will compete at the freestyle kayaking world championships this winter in Australia. Organizers of last weekend's Blackwater Challenge hope the event will show Watertown is ready for global competition in the future. David Sommerstein visited the tournament and has our story.