Leave from the village il Pirello (1030 m asl), going uphill on the asphalted road with the signs to path no. 280 headed to Rifugio Pirlo. After a steep beginning, the path continues on a relatively delicate slope. After a clearing, it enters the wood on a plain trail and, through delicate ups and downs, will take you to Passo di Spino (1160 m asl) between Monte Spino to the North-West and Monte Pizzocolo to the South-East. You will also see some buildings and the crossroads to Rifugio Pirlo on your left. At Passo di Spino, following the old military road going uphill on the right among large beech trees, after some hairpin bends you will reach Dosso delle Prade (1352 m asl). From here continue northwise along a narrow military road offering a series of views on the lake. After a few curves the lake reappears, then the path continues among large beech trees. Beyond the itinerary that reaches Sarnico, you can carry on the last section of the trail through to Bivacco Due Aceri, always open but not guarded, which takes its name from the presence of two old maple trees close by the building, which is a restored version of an old Great War location. From here you reach the top of Monte Pizzocolo (1581 m asl) from which you can enjoy beautiful views of Monte Baldo, Lake Garda, Valvestino, Prealpi Bresciane and, on sunny days, also the Apennines. Close by the top there is also the church dedicated to the victims of war. Following the same itinerary you will reach the starting point. It is possible to leave on foot also from Colomber: in this case you should count an hour and a half more on departure, and an hour on your way back. To reach il Pirello village, get to San Michele then to Colomber. Here, close by an old wash house, keep your right and follow the directions to Rifugio Pirlo.