This is where nature sculpts the granite rock. Cala Ghjlgolu (or Girgolu) is found in thelocality of Vaccilleddi, at the base of the Monte Petrosu promontory, in the territory of Loiri Porto San Paolo. Its turquoise sea and white sand make it shine and it is known above all for the rock of La Tartaruga - from which it gets its ‘second’ name - an attraction for visitors, especially younger visitors. It is one of the most photographed rocks not only in Gallura but in the whole of Sardinia and is the result of thousands of years of erosion caused by the weather. Other rocks also make the cove stand out: these are called ‘tafonate’ and are eroded by the quartz crystals from the granite that, when crumbled, rotate wildly as an effect of the wind.