This loop begins in Parrano a fortified medieval village perched around an eleventh century castle. The Parrano is about fourty minutes from Orvieto. The easiest route is to take the A1 highway and then exit for Fabro following signs to Parrano. In the village you go to the north along the main road for about 1 km (this stretch coincides with the crossing of the two lakes), then take a dirt road on the left up to an abandoned farmhouse called Bagno where there is a small parking lot. Past the gate, you go down a path through the woods which leads to the course of the Fosso del Bagno.
Near a picturesque natural rock along a ditch and the right bank. From here the trail is equipped with pegs and ropes and allows the visit (by experts, recommended local guides employed at the Regional Documentation Centre – Tel: (+39) 0763.838001) to a series of natural karst caves carved on the walls of the gorge, “Tane del Diavolo”: an important natural and archaeological attraction with finds from the third century B.C. and the culminate cavity with a reservoir of mineral waters. From here there is a short section of road and then take the first right going along a quarry. It then runs through the area known as the Piano and continue along parallel the Chiani river almost to Fosso Posticce, then turn left onto the dirt road that leads to Verciano and then returns to the town of Parrano.
- Interests: landscape, nature, sports.
- Route time: 3 hours
- Difficulty level: on paths, on the EEA equipped stretches
- Elevations: 250 meters up and 225 meters down
- Route markers: charts, white-red markers not always present.
- Characteristics: dirt roads and farm tracks, large trails of forest to avoid in the rainy season for danger of landslides.