The prehistoric Pech-Merle caves contain some of the oldest Upper Paleolithic cave paintings in the world. Dating from 25,000 BC. It is particularly famous for "The Dappled Horses of Pech-Merle".
This is an iconic cave in that it is original and not a copy. It is forty minutes drive from Lario Grange maybe fifty. There are beautiful paintings inside it that date back some 25,000 years and some beautiful geological features like huge discs of calcite made by a high pressure of water…
Although a little further away, about an hour and a half drive. It is well worth it, the world famous spotted horse cave paintings are amazing and the museum is very interesting. You can make a day of it and take a piknic.