UPDATE FIRST STAGE
Due to an interruption on the natural trail along the Marecchia river, it is necessary to take the easier detour described below, which is 1 km longer than the official one. Download the GPS track.
When in Vergiano, after reaching the SP Marecchiese, instead of turning right onto via Pergola (Photo 1),
Photo 1
continue straight on the cycle/pedestrian path next to the provincial road, up to Sant'Ermete (1.1 km), then at a small roundabout take Via Savina on the right (Photo 2)
Photo 2
Cross it on the pedestrian crossing and continue on the other side for 1.6 km (initially on the pavement), ignoring every deviation until arriving, at a left bend, at the entrance to a small road with a barrier (Photo 3)
FOURTH STAGE
After the crossroads for Scavolo follow the MTB route link