There is some ‘tradition’ of people going into the cave to sign their names. The further in they go, the more prestige it is.
Humans do stupid things.
We use to play in the roots of trees that were pushed over an embankment as it looked like a scene from Peter Pan in the yes of kids. It was well off the highway near a creek so we saw it as our private place to play. Never realized those trees could have fallen further into the creek by just playing and digging out the dirt four our tunnel city.