I stayed at Ferne Clyffe on a weekend in July 2020. I used this park as a base camp for exploring Shawnee National Forest and the Cache River Preserve. There’s a lot of outdoor things to do in this area. Ferne Clyffe is small. There’s one campground for RVs with electric hookups and another campground for more primitive camping. $8/night for primitive. The primitive sites require that you park your vehicle and carry in your equipment (less than 100 feet). You can pull your vehicle right up to sites 11 and 19. There were very few campers there when I visited. There is cellphone signal. Small fishing lake and a few hiking trails. Shower has at the electric campground. Pit toilets.