Caves were discovered, one after the other, thanks to the light of headlamps, revealing the underground world. Because of their love and awe for nature, people went under to see early traces of humanity – furtive, secretive, hints of an outline with a forgotten meaning, or forlorn vestiges. Mother Nature is Queen of this place and makes it clear to all. Prove your worth by canoeing down the river, as did the hunters depicted on the cave walls. Prehistory and first humans left a permanent trace in this magnificent landscape.