tour from Mariana di Campo to St. Iliario, Mt. Perone, Pietra Maurita, S. Piero back to Mariana di Campo. The uphill St. Ilario Mt. Perone is steep, downhill the only diffculty is from Pietra Maurita to direction of Seccetto. (I think you could also go down from waypoint 28 to 32 =sentiero 7 or go horizontal from waypoint 28 on sentiero 34 to the street Perone/St. Ilario).