Sunlit trees reflect in the completely shaded Rock Run water. When shooting in the shade, take care to avoid hot spots (directly sunlit areas) in your photo. Reflections can work.
If the kids (or you of course) are cold-water-tolerant, there are some great swimming holes in Rock Run - you are looking at a nice one here.
Camera and Lens Settings
17mm f/16.0 10s
5616 x 3744px