Somethin' other than climbing
At the Natural Bridge Lodge, the trail heading up to Natural Bridge has a cave off to the left which is fun to explore. Not real deep and it does have another entrance off the Balancing Rock loop trail. If they decide to do this, they should bring a couple of flash lights. Last time I did it with my 2 sons, we found a mother and her 2 young children, sitting in the dark, after she had dropped and broke their only light source. We were heros in their eyes.