The Alta Via dei Monti Liguri is a long-distance walking route that crosses the Ligurian Apennines along the main ridge, and the Trebbia Valley section passes through some of the wildest and quietest terrain on the route. The path here stays high above the valley floor, crossing open grasslands and beech forests with long views south toward the Mediterranean and north into the Po Plain. In clear weather the sea is visible from the ridge.
Day walks from the valley villages — particularly from the hamlet of Barbagelata at 1,100 metres — give access to the best sections of the route without requiring a multi-day commitment. The terrain is moderate, the paths are marked, and the summer wildflowers on the high meadows are exceptional. The ridge sections around Monte Antola, a few kilometres north, are the finest; Monte Antola itself is a regional park and can be combined with the Alta Via walks.