In the heart of the Barbagia di Seulo region, in the territory of Sadali, a small inhabited area between the provinces of Cagliari and Nuoro, an ancient legend enshrouds a lush forest of holm oaks. On the border with the territory of Seulo, a short distance from Su Stampu 'e Turrunu, a 16-metre high waterfall (which should absolutely not be missed) that jets out from a rock, Is Janas is hidden in the luxuriant vegetation. Enshrouded in an aura of mystery the caves, which are 240 metres long, bring to mind ancient fairy-tales and their protagonists, the fairies. It is said that they lived far from prying eyes, preparing delicacies and sweets, and that they were turned to stone by God for having killed (and mocked) an old friar.