If you want to explore Sardinia more in depth, you should check out the nicest hidden gems of the island. Here's the list:

• Posada Castle
• Siliqua Castle (my guide here)
• San Sperate (my guide here)
• Narcao and its mines
• Nebida lavery
• Villa Piercy
• Villa d’Orri (my guide here)
• Parco Aymerich, Laconi (my guide  ...