Heather Herbeck's thoughts as she plunges down the Kadunce River might go something like this: Okay, oh-kaaay, oh my gosh, dip dip fall, keep straight, straight, almost to the end, just about there, splash and…wow. "The Kadunce River on Minnesota's North Shore is one of my favorite runs," says Heather, who has been running rapids, risking neck and limb, and walking the extreme edge of outdoor recreation for ten years plus. "It's not a long run, but it's a 150-foot plunge so narrow in places that a sideways kayak could get stuck."