Justin and I went to Cumberland Gap about two weekends ago. I work in the small town of Harrogate, which lies just below the gap, and I've been through the park briefly once before. But I got to do some more detailed investigation this time. One of the places we decided to hike, solely based on the name shown on the map, was Skylight Cave. It ended up being a really neat little cave with a large opening at ground level and a smaller opening higher up. It looked like the cave had a skylight. I took this picture from the back of the cave, looking up at the light in the ceiling. It doesn't do it justice; it was such an eerie light.