The Nuraghe Diana is located on the coast road to Villasimius and is easily accessible along the SP17 up to the town of Baia Azzurra - Is Mortorius.
It dominates the top of a hill, in the north of the promontory of Is Mortorius, it is about 150 meters away from the sea, and is located at 35 m a.s.l.
The nuraghe, due to its extraordinary strategic position, was certainly part of the Nuragic coastal defensive system monitoring the routes travelled in the Middle-Late Bronze Age in the Gulf of Angels (from Capo Carbonara to Capo Spartivento, then upt to Capo Teulada and beyond). From its summit it was possible to supervise Mycenaean, Levantine, Cypriot, Punic and Roman trades.
From underwater prospecting, carried out along the coast of the promontory of Is Mortorius, the archaeologist Patrizia Zuncheddu was able to detect all the conditions that suggest the presence of a natural harbour, which allowed and facilitated the disembarkation of anyone who needed to land or set sail from this coast. The seabed has returned ceramic material from the Roman era, but the use of the landing place is believed to date back even to more ancient times.