The cave owes its name, which literally means Thoroughfare Cave or Passage Cave, to this feature.[3] The size of the Big Entrance of Prohodna makes it suitable for bungee jumping[4][circular reference], and it is among the popular spots in Bulgaria for that activity.[5] There are traces of prehistoric habitation in the Prohodna cave, which testify that humans lived in the cave during the Neolithic and Chalcolithic.[3]