• The route:
  Capanna Marcone - Molino dei Diacci - Rifugio I Diacci - Altello - Pian di Rovigo - Capanna Marcone (Palazzuolo sul Senio)
• Distance run: 2-3 hours
• Uphill climb: 450 m
• Trails: Wooden arrows mark the CAI 00 trail
• Difficulty: Easy trail in an extremely suggestive natural setting.

The waterfall trailFrom Colla di Casaglia (913 m.), the trail, which can be run by car or on foot, moves along the road for Palazzuolo sul Senio, and to a sharp curve in the road (1010 m., ample parking on the right). The trail moves along the forest path just beyond the metal bar on the left (red and white CAI 00 signs mark the way) and travels to Capanna Marcone (1021 m.), a quaint unlocked stone shelter with a table, chairs and a fireplace. Just opposite the shelter, a trail leading to Mulino dei Diacci (following the arrows for Torrente Rovigo – Diacci) lies on the right.

At first the path is level, but soon it begins to descend along the Fosso Dei Pianacci woodland gully. Further ahead, the trail moves along the right side of the valley and then descends among small but charming waterfalls formed by the stream and its tributaries. The natural setting, dominated by beech trees, is breathtaking. This particular trail, as well as many others in the area, has been marked with wooden arrows by the people who run the Diacci shelter. It reaches the Rovigo stream, just in front of the ancient Diacci Mill (865 m.).

The trail crosses the river, which flows over the smooth Apennine rocks, and comes to a fork in the road. Bypassing the main trail to the left, which moves along the bottom of the valley, the trail moves right and up a steep path. Soon after, the trail moves right again onto a small path that stretches between two boulders. From here it is possible to pass under a high waterfall: the most beautiful in the area.

Once on the main trail again, the path follows the arrows for Diacci and continues to rise sharply until it reaches the sunny clearing on which the shelter (941 m.) stands. The trail follows the signs for Altello and Pian di Rovigo along a wide path that sets off from behind the shelter and moves along the mountainside. It crosses a stream and climbs slightly until it reaches a sharp curve to the right. The main trail, marked with red and white signs, climbs to Poggio dell'Altello (from the hillock there is a path that coasts the crest: to the right of a dirt road leads back to Diacci). The suggested itinerary bypasses this path and moves straight on, beyond a fence and into the woods (red and white signs mark the trail). Just below, the trail becomes more visible and, in some places, comes out onto open, barren, angled planes. Past the fence, the trail ascends to Pian di Rovigo (888 m.). Descending to the left, the trail touches upon the ancient homes of Pian di Rovigo (864 m.) and then continues to the bottom of the valley along a deep narrow path. At the Diacci Mill the trail turns back, along the same route, to the place of departure.