Prehistoan proposes an audio-visual show that delves into the halls and galleries of the Grotte de Han, caves reserved for speleologists. A large animated model explains the geography of all the networks of the cavern and helps you understand its mechanisms. You will also see artefacts unearthed during digs in the region, mainly speleologic: pottery, tools, weapons, jewellery, a fragment of a diploma belonging to a Roman veteran and Gallo-Roman, Merovingian and Medieval objects.