Backpacking. We ended up hiking close to 70 miles in 3 1/2 days. 20 miles on the AT. All of the trails were in the eastern part of the park. We packed light, approx. 25 pound packs and both of us used running shoes rather than boots. As for food we ended up having just enough to survive. Also, thank the gods it didn't rain or get below 30 degrees... On our hike out we found a nice swimming hole. (pictures above) Jumping into the freezing cold water made a great lasting memory of the trip. Another great memory is jogging the last 5 miles of trails out to my truck.