Follow path 250 as per Upper Glacier route, after the Glacier Saddle descend to find the last portion of Vallon Antelao (Antelao valley) until the fork of the valley itself (1920 m). Once there ignore path 258 which leads to Calalzo and Val d’Oten and instead follow the crack of Campestrin Valley and then ascend the slope which leads to Forcella Piria (2096 m). After this saddle there’s a descent just aside of the Crode di San Pietro pinnacles until Sella Pradonego, where Rifugio Antelao lies (6 hours from Rifugio Galassi).