Sardinia isn't just sun and sea, so if you have the time you should explore the various hiking trails on offer and discover places like the Tacchi di Ulassai (peaks of Ulassai). They’re located in the heart of Ogliastra along one of the highways leading from Barumini to Arbatax. As you pull up in your car, it’ll seem like you’re arriving in a surreal and magical landscape. You’ll see a towering red limestone peak known as Tisiddu in Sardinian. At the base of Tisiddu, you’ll find Is Lianas and Su Marmuri, the two most famous caves on the island.
It’s a great area to go hiking or just take a casual stroll out in the countryside.