Olduvai, more accurately called Oldupai after the wild sisal in the area, is situated near the Ngorongoro Crater and is the site of some of the most important finds of early hominid fossils of all time (made famous by the work of the Leakey family) – The “Nutcracker Man” or Australopithecus boisei who archaeologists believe lived 1.8 million years ago. There is a small informative museum located at the visitor center. The gorge is a treasure trove of archaeological sites filled with fossils, settlement remains and stone artifacts. Lecture tours are offered.