The fault line trek
The Fault Line Trek functions as a ten-day standalone trip, or a five-day extension of the AGT. The following itinerary begins at Camp 5 of the AGT:
Day 1: Cross Colonia Glacier terminal lake to Arco Camp.
Day 2: Climb up to Falla Valley, surrounded by hanging glaciers.
Day 3: Hike up the Falla River. Camp below Cerro Calvo.
Day 4: Cross Medalla Pass. Spectacular views of surrounding valleys.
Day 5: Descend Medalla Valley to confluence with the Claro River.
Day 6: Follow the Claro River to Sol de Mayo.