ARKANSAS RIVER (4.3 miles): Fishing, kayaking, rafting OPT OUTSIDE: Buena Vista Whitewater Park (2.6 miles), Cottonwood Hot Springs (5.4 miles), Harvard Lakes (7.3 miles), Avalanche Trailhead (9.3 miles), Cottonwood Lake (10.3 miles), Mount Princeton Hot Springs Resort (10.3 miles), Denny ...