Ibones de Barbarisa Trail from Collado de Sahún
Ibones de Barbarisa Trail from Collado de Sahún
1
runners
01:44
9.33km
470m
Running
This difficult 5.8-mile trail running route from Puerto de Sahún leads to the high-altitude Ibones de Barbarisa with stunning Pyrenean views
Last updated: February 26, 2026
Tips
Includes segments that may be dangerous
Parts of this route comprise highly technical, difficult, or hazardous terrain. Specialist equipment and prior experience is required.
After 4.11 km for 89 m
After 5.15 km for 89 m
Waypoints
Start point
Parking
Get Directions
4.63 km
Highlight • Lake
Translated by Google •
Tip by
9.26 km
Highlight • Mountain Pass
Translated by Google •
Tip by
9.33 km
End point
Parking
Way Types & Surfaces
Way Types
9.06 km
173 m
104 m
Surfaces
9.23 km
104 m
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Elevation
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Weather
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Tuesday 14 July
29°C
16°C
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This route was planned by komoot.
While the Komoot data suggests a faster time, a typical trail running experience from Puerto de Sahún to the Ibones de Barbarisa and back usually takes around 5 hours and 15 minutes. This accounts for the challenging terrain and significant elevation gain.
The terrain is varied and demanding. You'll start on a track closed to traffic, or a less defined, unstable path. The route then ascends alongside the Surri gorge, featuring 'mostly accessible paths' but continuously requiring sure-footedness. Expect sections through forests and pastures, transitioning to rocky areas and a glacial moraine as you approach the high-altitude ibones.
This trail offers truly spectacular panoramic views. You'll see the Ésera valley, towns like Castejón de Sos and Villanova, and prominent peaks such as Gallinero, Turbón, and the Sierra de Chía. From Puerto de Sahún, there are sweeping vistas of the Cotiella massif, the Bal de Chistau, and the Benasque valley, including the south face of Aneto and Maladetas. The destination, the Ibones de Barbarisa, are a series of stunning lakes nestled in a solitary glacial cirque.
No, this trail is generally classified as 'difficult' and requires a 'very good fitness level.' It demands sure-footedness and, for certain conditions, sturdy shoes and alpine experience. It's not recommended for beginner trail runners.
You can typically find parking at Puerto de Sahún. The trail initially follows a track that is closed to traffic, suggesting a designated area for vehicles at the pass. It's advisable to arrive early, especially during peak season, to secure a spot.
The best time to visit is generally during the warmer months, from late spring to early autumn, when the snow has melted and the high-mountain paths are clear. Always check local weather conditions before heading out, as alpine weather can change rapidly.
The trail is located within the Posets-Maladeta Natural Park. While dogs are generally permitted in natural parks, they are often required to be kept on a leash to protect wildlife and ensure the safety of other visitors. Always check the specific regulations for the Posets-Maladeta Natural Park before your visit.
Generally, there are no specific permits or entrance fees required for hiking or trail running on this route within the Posets-Maladeta Natural Park. However, it's always good practice to check the official park website for any updated regulations or temporary restrictions before your trip, especially concerning protected areas or specific activities.
Yes, a small section (approximately 4%) of this route overlaps with the official trail known as 'La Ribagorza. BTT. Ruta 21. Vuelta a la Siera de Chia'.
Puerto de Sahún itself is a mountain pass, so direct amenities like cafes or accommodation are limited right at the trailhead. However, nearby towns in the Ésera and Benasque valleys, such as Castejón de Sos or Villanova, offer various services including cafes, pubs, restaurants, and accommodation options.
Compared to other access points, the route from Puerto de Sahún is often considered the most manageable in terms of terrain and length. It provides a challenging but rewarding trail running experience to the high-altitude Ibones de Barbarisa, offering a sense of solitude and wild beauty with extensive panoramic views of the Pyrenees.
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