Maybe you have read the novel "Picknick at Hanging Rock" by Joan Lindsay, or seen the movie directed by Peter Weir - a group of schoolgirls get lost on a school excursion to Hanging Rock, and never reappear again, leaving a shroud of mystery. Hanging Rock really exists and can be visited on a day trip from Melbourne. It is an eroded volcanic rock formation set in a small forest, towering more than 100 m over the surrounding plains.