In a fertile plain, among wheat fields, farms and streams that irrigate vegetable gardens, a volcanic relief of hard rock suddenly shoots up to the sky. At the top, an old castle still clings on. A simple path uphill slowly leads us to discover the ruins of a village, the ancient cisterns for water collection and the remains of a church. Finally, the castle appears before us, and from there we admire a landscape that glows with different colours every month of the year. Conclude this experience at the top of the castle with a glass of wine and tasty products of the Sardinian tradition. After touching the sky with your finger, we will feel as if floating between stillness and silence when we reach a very long cave down below, to admire huge stalactites, stone patterns created by water. For almost a kilometre, we will cross this natural wonder with excitement and amazement, before emerging from the exit at the bottom in the middle of dark green woodlands of centuries-old oak trees.