The fortress of San Nicolo, located at the foot of Mount Brione in the city of Riva del Garda, is what is known as the southern battery, where the fortress, consisting of 6 ditches, was used as a storehouse and warehouse for foodstuffs in periods of war, and was guarded by approximately 160 soldiers, but at the time Currently, the place is used as a center for studying the lake and its nature, and receives individuals wishing to explore it on organized tours.