Discover Sydney's Dark Side with a 90-Minute Walking Ghost Tour of The Rocks - From $17! Discover Sydney slums overrun with mass burial pits, sly grog haunts, opium dens and vengeful ghosts with this 90-minute Lantern Ghost Tours experience in The Rocks. Go back to a darker time in Sydney's history, where public executions were a normal occurrence, gangs ruled the streets, and The Rocks was an unsavoury place to be after dark. You may even come across the spirits of double-crossed gangsters looking for revenge on anyone who gets in their way - all with an expert guide by your side. BYO holy water!