Start in Boí (1,265 m) at Riu Square and head south along the trail. After about 200 metres, you'll reach a fork. Take the left-hand path, which climbs up a broad scree slope and offers panoramic views of La Vall de Boí. The trail crosses a small pass near Roca de Espà before descending into Durro (1,390 m), where it reaches the road just above the old school building.
Start in Boí (1,265 m) at Riu Square and head south along the trail. After about 200 metres, you'll reach a fork. Take the left-hand path, which climbs up a broad scree slope and offers panoramic views of La Vall de Boí. The trail crosses a small pass near Roca de Espà before descending into Durro (1,390 m), where it reaches the road just above the old school building.