Natural Monuments around Sansa offer diverse landscapes for outdoor exploration. The region features a variety of natural formations, including rock passages, hot springs, and lakes. These natural areas provide opportunities for activities such as hiking and enjoying scenic views. Sansa's geography supports a range of natural attractions, making it a destination for those seeking natural beauty.
Last updated: June 22, 2026
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From here you can enjoy a wide panorama of the Catalan Pyrenees. To the left, towards the Carcanet biological reserve. To the right and straight ahead, towards the summits with the pic de Madrès, the highest mountain in the area.
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These dizzying gorges are the starting point for hikes to the lake of the same name. The gorges can be explored on foot, via walkways and ledges dug in 1943 to serve the construction site during the drilling of the tunnel that collected water from the Carança River for the Thuès hydroelectric power plant.
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Beautiful point to look around and let each other pass
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A natural sulfurous hot spring. The water is very hot at the top and cools in the pools below.
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The Oller refuge (not guarded) is located halfway up the Pic de Madrès from Odeillo. From this point, you will have privileged views over places such as Puyvalador and its lake, the old station and the Pic de Ginèvre area, the Llissa Cremada, etc. As for the shelter, it is not very big but it is very pleasant and well equipped. It has bunk beds for four people, a stove and firewood, some books, maps...
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The Oller refuge (not guarded) is located halfway up the Pic de Madrès from Odeillo. From this point, you will have privileged views over places such as Puyvalador and its lake, the old station and the Pic de Ginèvre area, the Llissa Cremada, etc. As for the shelter, it is not very big but it is very pleasant and well equipped. It has bunk beds for four people, a stove and firewood, some books, maps...
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Narrow passage cut in the rock and quite impressive.
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The Sansa region offers a diverse range of natural monuments, including unique rock formations like Roc de la Foradada, natural hot springs such as the Natural Hot Spring of Thuès-les-Bains, and serene lakes like Lake Caudiès and Lake Nohèdes (Gorg Estelat).
Yes, the Natural Hot Spring of Thuès-les-Bains is a notable natural monument in Sansa. It features a natural sulfurous hot spring with varying water temperatures in different pools, offering a unique natural experience.
Lake Caudiès is a family-friendly natural monument. It provides a pleasant environment with picnic benches and barbecue areas, making it ideal for a day out with the family. It's also a good starting point for easy hikes.
Many natural monuments in Sansa offer scenic views. For instance, Roc de la Foradada is known for its impressive narrow passage cut in the rock, providing notable scenic vistas. Additionally, the Refuge d'Oller, while a hut, is located near natural monuments and offers privileged views over areas like Puyvalador and its lake.
Yes, the natural monuments in Sansa are often integrated into hiking routes. For example, you can hike around Lake Caudiès. For more extensive hiking, explore the various trails listed in the Hiking around Sansa guide, which includes routes like the Puyvalador Dam loop and trails around Col de la Creu.
Yes, there are several mountain biking trails in the region. The MTB Trails around Sansa guide features routes such as the Lac d'Aude – Refuge Bernardi loop and the Matemale – Col de la Creu loop, which allow you to explore the natural landscapes by bike.
Visitors appreciate the diverse natural beauty and the opportunities for outdoor activities. The narrow passage and scenic views at Roc de la Foradada are highly regarded, as is the unique experience of the Natural Hot Spring of Thuès-les-Bains. Lakes like Lake Caudiès are loved for their pleasant environment and picnic spots.
While specific difficulty levels for individual natural monuments are not always listed, some areas offer more challenging terrain. For instance, reaching Lake Nohèdes (Gorg Estelat) involves a road that requires high ground clearance, suggesting a more rugged approach. The Hiking around Sansa guide also lists several 'difficult' routes, such as the Roc Negre – Refuge du Pla de Grill loop.
Yes, road cycling is a popular activity in the Sansa region. You can find various routes in the Road Cycling Routes around Sansa guide, including loops like Coll de la Llose and Lake Matemale, and routes passing through scenic areas and mountain passes.
Lake Nohèdes, also known as Gorg Estelat, is a magnificent lake situated at an altitude of 2,002 meters at the foot of the Pic de Madrès. It offers stunning natural beauty, though access to its starting point may require a vehicle with high ground clearance.
Yes, the Refuge d'Oller is located halfway up the Pic de Madrès. It's an unguarded hut that offers privileged views over places like Puyvalador and its lake, and is equipped with bunk beds, a stove, and firewood, making it a pleasant stop for those exploring the surrounding natural areas.


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