Northern Waters Outfitters operates from Errol, New Hampshire, offering whitewater rafting on a half-mile section of the Androscoggin River featuring class II rapids with class III features at high water, plus four guided runs, inflatable kayaks, and tubing. The outfitter also runs canoe and kayak trips across the Magalloway River, Lake Umbagog National Wildlife Refuge, and Rapid River, with routes ranging from short out-and-back paddles to 20+ mile continuous floats. Multi-day trips can include overnight camping at Cedar Stump campsite on the Rapid River. Northern Waters has operated for fifty years and maintains two campgrounds: a basecamp in downtown Errol next to the Androscoggin River, and the remote Cedar Stump site accessible by boat.