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France
Occitania
Saint-Gaudens

Moustajon

The best mountain hikes around Moustajon

4.8

(9)

38

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Mountaineering around Moustajon is characterized by its mountainous terrain, featuring prominent lakes and waterfalls within the Oô Valley. The region offers a network of routes that traverse varied landscapes, including forested sections and open mountain views. Elevations vary, providing options for different levels of mountaineering experience. The area's geography is shaped by its proximity to the Pyrenees, contributing to its rugged and scenic character.

Best mountaineering routes around Moustajon

  • The most popular mountaineering route is Bridge near Lake Oô –…

Last updated: June 24, 2026

4.5

(6)

28

hikers

#1.

View of the plain – View of the Lac d'Oô waterfall loop from Granges d'Astau

6.93km

02:39

390m

390m

Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.

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Moderate

Hard mountaineering route. Very good fitness required. Mostly accessible paths. Sure-footedness required.

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Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.

Moderate

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Tips from the Community

Delavega
August 22, 2025, Vue sur le Lac d'Oô

Very pleasant family outing

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Here the valley opens up to reveal a pretty plain. Continue up the valley to Lake Oô, to enjoy more magnificent views.

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Paul_C
November 11, 2024, Vue sur le Lac d'Oô

Hike to the stunning Lac d’Oô, a beautiful glacial lake nestled in the Pyrenees. As you approach the lake, you’ll be treated to breathtaking views of its clear, turquoise waters, surrounded by sheer cliffs and lush forest. The hike is moderately challenging, with rocky paths leading to a perfect viewpoint where the lake and surrounding peaks create a truly picturesque scene. Take some time to appreciate the tranquility of the area, where you can also catch a glimpse of the impressive Oô waterfall cascading down the mountainside.

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Beautiful turquoise blue lake and stuff

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Next to the Lac d'Oô bivouac you have the best point of view, the most axial, to admire the Lac d'Oô waterfall.

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A nice place to stop off after the hike. The car park is generously dimensioned, since the Lac d'Oô and the Lac d'Espingo are popular hiking destinations, you should still come early to get a parking space.

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Julien Harté
March 15, 2023, Lac Vert

Lac Vert, made up of three basins, is located at an altitude of 2,004 metres. Nestled at the foot of the Pic du Maupas in a green setting, this lake suggests a pleasant break.

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Located in the heart of the Pyrenees, at the foot of Lac d'Oô, the Granges d'Astau offer a restaurant, a bar and a gîte on the GR 10 trail.

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Frequently Asked Questions

What types of mountaineering routes can I find around Moustajon?

Moustajon offers a variety of mountaineering routes, ranging from moderate to difficult. The terrain is characterized by its mountainous nature, featuring prominent lakes and waterfalls within the Oô Valley, as well as forested sections and open mountain views. You'll find options like the moderate View of the plain – View of the Lac d'Oô waterfall loop from Granges d'Astau, which provides scenic views of the Lac d'Oô waterfall.

Are there any family-friendly mountaineering options near Moustajon?

While many routes are challenging, some moderate options might be suitable for families with older children or those accustomed to mountain hiking. The Cromlechs du Mail de Soupène loop from Benque-Dessous-et-Dessus is a moderate 6.3 km route with less elevation gain, offering a good option for a family outing.

What are some of the longer or more challenging mountaineering routes in the area?

For those seeking a challenge, Moustajon offers several difficult routes. The Waterfalls of the Oô Valley – Lac Vert Waterfalls loop from Les Écharts is a demanding 17.5 km trail with significant elevation gain, often taking over 8 hours to complete. Another difficult option is the Waterfalls of the Oô Valley – Lac Vert Waterfalls loop from Les Bourdalès, covering 13.1 km.

Where are the main trailheads and parking areas for mountaineering in Moustajon?

Common starting points for mountaineering routes in the Moustajon area include Granges d'Astau and Les Bourdalès. These locations typically offer parking facilities, serving as convenient access points for trails leading into the Oô Valley and towards Lac d'Oô.

What natural attractions or landmarks can I expect to see along the mountaineering routes?

The mountaineering routes around Moustajon are rich in natural beauty. You'll encounter impressive waterfalls and stunning mountain lakes, particularly within the Oô Valley. Many routes offer views of the Lac d'Oô waterfall and the surrounding plains. You can also explore nearby mountain passes like Peyresourde Pass or mountain peaks such as Superbagnères Summit.

Are there any circular mountaineering routes available?

Yes, many of the mountaineering routes around Moustajon are designed as loops, allowing you to start and finish at the same point. Examples include the popular Bridge near Lake Oô – Lac d'Oô loop from Granges d'Astau and the View of the plain – View of the Lac d'Oô waterfall loop from Granges d'Astau.

What is the best season for mountaineering in Moustajon?

The best season for mountaineering in Moustajon typically runs from late spring through early autumn (May to October). During these months, the weather is generally more stable, and trails are clear of snow, making for safer and more enjoyable conditions. Always check local weather forecasts before heading out.

What do other mountaineers enjoy most about the Moustajon area?

The mountaineering routes in Moustajon are highly rated by the komoot community, with an average score of 4.7 stars from over 24 reviews. Reviewers often praise the stunning mountain lakes, impressive waterfalls, and the varied valley terrain that offers both moderate and difficult options.

Are there any less crowded mountaineering routes in Moustajon?

While popular spots like Lac d'Oô can attract visitors, exploring routes that venture further into the Oô Valley or those starting from less common trailheads might offer a more secluded experience. Consider routes like the Cromlechs du Mail de Soupène loop from Benque-Dessous-et-Dessus for a potentially quieter outing.

Are permits required for mountaineering in Moustajon?

Based on available information, specific permits are generally not required for day mountaineering trips on the established trails around Moustajon. However, it's always advisable to check with local tourist information centers or park authorities for any updated regulations, especially if planning to venture into protected areas or for overnight stays.

Can I find cafes or pubs near the mountaineering trailheads in Moustajon?

While Moustajon itself is a small village, the larger towns in the surrounding Comminges region, such as Bagnères-de-Luchon, offer a variety of cafes, restaurants, and pubs where you can refuel after your mountaineering adventure. Some trailheads, like Granges d'Astau, may have seasonal refreshment options.

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