Porto Conte Park and Monte Doglia
Monte Doglia, 437 meters high, is the highest hill of the area and so offers wonderful 360° view of Alghero bay and the surrounding countryside.
From here you can quickly reach Porto Conte Regional Park, where there are many protected species like griffons, deers, foxes, tortoises.
You can visit the area by car, trekking or horse riding. For bicycle fans, the local Mountain Bike club organizes excursions in the area amoung 5 different tracks , suitable for every level.
The Park Office where you can get info and buy local products is in Tramariglio, in the way to Capo Caccia.
Find more here (only in Italian)