On June 2018 Don Minzoni Primary school pupils visited the Park of River Trebbia near Piacenza in order to explore the natural environment. The river Trebbia originates in the Ligurian Apennine, and after crossing the upper and middle Piacentino Apennine it reaches the first hills where the regional River Park begins. There the pupils observed the flora, the animals and the stones on the river banks. It was a great exploration!