Most dating back at least 6000 years to the early Stone Age, Twyfelfontein’s rock engravings were probably the work of ancient San hunters, and were made by cutting through the hard patina covering the local sandstone. In time, this skin reformed over the engravings, protecting them from erosion. From colour differentiation and weathering, researchers have identified at least six distinct phases, but some are clearly the work of copycat artists and are thought to date from the 19th century. Guides are compulsory; note that tips are their only source of income.
