Brief overview of Lake Champlain Bikeways. Lake Champlain Bikeways Designated as a Millennium Legacy Trail. Detailed directions of the Champlain Bikeway, a 363-mile loop around the lake and its network of connecting theme loops. View our map of the Champlain Valley area and find out how to obtain detailed maps and guidebooks of Lake Champlain Bikeways routes. An overview and (NEW!) listing of ...