>>1650831As said in other post, "Picnic at Hanging Rocks" 1975 movie (ignore the recent remake) is imo the closest for various reasons, but don't expect horror / survivalist action of any kind, it's more a dreamy film about the mystery itself of the disappearance of a group of girls in the /out/, how people reacts to the mystery, etc. The book on which it's based is said to be good too, and supposedly based on true events.
