This is a circular walk that starts next to the Caldeiras of Ribeira Grande. It is about 4km long and a relatively easy walking route although it has some steep slopes. On this trail, our guide will give interesting information about the water resources of São Miguel island. This is a great opportunity to be in contact with nature and at the same time discover how it becomes very useful in our lives. The trail crosses all the fundamentally important sites of the Fajã Redonda Hydro Power Plant.