The caves are open daily from 9am to 5pm and the last guided tour departs at 4pm
The Sterkfontein Caves is one of the richest and most productive paleao-anthropological hominid fossil sites in the world. It has yielded some of the most valuable and oldest evidence of the origins of humankind ever found, including the 2-million-year-old Mrs Ples, the first complete skull of the Australopithecus genus to be discovered by palaeontologists Dr Robert Broom and John Robinson. Excavations are still in progress on a full skeleton of an Australopithecus, discovered by Professor Ron Clarke in 1997. It is anticipated that the excavation will be completed later this year.