No hike necessary! Rock Island State Park in Tennessee has not one but TWO waterfalls that you can see right from the parking lots! First is TWIN FALLS (in the video above). Simply park in the lot at the end of Power House Road and enjoy the view of the waterfall right from the parking lot! For those who want to get a little closer to Twin Falls, walk down the steps and scramble across the rocks! Next is GREAT FALLS. This waterfall is located on the other side of the river. Park at the Old Mill