The Cadibona Pass (Colle di Cadibona), a few kilometres south of Cengio, marks the accepted geographical boundary between the Alps and the Apennines — the point where the arc of the Alps ends and the long backbone of the Italian peninsula begins. It is a modest col by mountain standards, easily crossed by road, but historically significant as the gateway between the Ligurian coast and the Po plain.
The area is pleasant walking country, with forested ridges, occasional viewpoints, and the characteristic mixed woodland of the western Ligurian hinterland. It is not a dramatic destination but has a certain satisfaction for those who enjoy geographical curiosities — the point where one of Europe's great mountain ranges technically ends.