[Hahahaaaa magical humans. Pfft, yeah right. ...Well. Good thing for Johto's power removers, or they'd have been screwed since day one. Ulterior motives and strategy are terrible enough.]

Only if it was one way. Most of the caves here have two exits, as far as I can tell. There's always a way out of them, even if you have to make one on your own.

[Or use the aforementioned rock-snake tunnels. Either works! ...Granted those may cave in on you so double-edged sword is an apt description.]