The guides at Sheltowee Trace Outfitters at Cumberland Falls make whitewater rafting, canoeing or kayaking on the forks of the Cumberland River an outdoor water adventure worth remembering. Cumberland Falls, sometimes called the Little Niagara, the Niagara of the South, or the Great Falls, is a waterfall on the Cumberland River. Spanning the river at the border of McCreary and Whitley counties, the waterfall is the central feature of Cumberland Falls State Resort Park.