Geoparque Unesco

PN 11 Otal Valley

Broto -Bujaruelo- Otal Valley

Route along the River Ara which enables us to cross the Mount Perdido unit and made interesting observations regarding its glacial past. The route starts in Broto, where we can view the spectacular Sorrosal waterfall. The tour makes its way up the River Ara valley but it is advisable to turn-off to Linás de Broto to view the glacial features of that valley.

After visiting Torla, a visit to the former Ordesa state hotel - currently the visitor centre - will enable us to view the tectonic structure of the Mount Perdido mantle before heading to Bujaruelo. The final section leads up the surprisingly well-preserved Otal glacial valley.

You only need to download the pdf of Geo-Route PN 11 Otal Valley


  • Route: Linear (return along the same route).
  • Type of Route: Linear (return along the same route).
  • Difficulty level: On foot - easy.
  • Duration: 5 hours; add 3 hours more if you decide to visit the Otal refuge.
  • Distance 36 km. San Nicolás de Bujaruelo-Otal refuge: 6,6 km (up)
  • Gradient: By car. Access to the refuge requires climbing a difference in altitude of 250 metres on foot.
  • Starting point Broto
  • Comments This Geo-Route runs through the Ordesa y Monte Perdido National Park, part of the transboundary site Pyrenees-Monte Perdido, declared World Heritage by UNESCO.At certain times of year it is restricted access by private vehicle to "La Pradera de Ordesa", having an alternative bus service. Information Point of the National Park in Torla. Tel: + 34 974486472

Recomentations in your visit to Sobrarbe-Pirineos Geopark

  • Safe visits, unforgettable experiences. There are companies who collaborate with the Geopark where you can hire specialized guides to make your tour a unique and safe experience.
  • Respect the geological outcrops. Do not break off samples of rock, mineral or fossils; anly take the loose pieces

Avda. Ordesa 79. 22340 Boltaña. Huesca. 974 518 025.