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Top 20 Lakes around Ustou

Best lakes around Ustou are nestled within the Ariège Pyrenees, a region known for its mountainous terrain. This area features numerous picturesque lakes, many of which are situated at high altitudes. These natural bodies of water offer tranquil settings and serve as destinations for hiking and various outdoor activities. The landscape around Ustou provides diverse opportunities for exploration.

Best lakes around Ustou

  • The most popular lakes is Guzet Pond, a lake that is bordered by vegetation, making the place…

Last updated: October 15, 2026

Pinet Refuge

Highlight • Mountain Hut

"The house by the lake..."
Beautifully situated hut on the ascent path from the L'Artigue parking lot to several peaks, including Pic du Montcalm and Pica d'Estats (I also included …

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Estany de Romedo de Dalt

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There are so many beautifull lakes in this areas and this is a splendid example. When you stay over at the refigi Certascan, you can plan a round trip in …

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Estany de Mascarida

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At an altitude of 2,330 m and in the area of the Alto Pirineo Natural Park

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Fantastic lake, but it's really hidden and not that easy to reach. The distance says little, it has to be a hard journey.

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Certascan Lake

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The Certascán lake is the largest glacial lake in the Catalan Pyrenees and rivals the Tort lake for being the largest in the whole mountain range. The final section of …

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Popular around Ustou

GR 10 – Explore the Ariège Pyrenees crossing the Pyrenees

Tour of Mont Valier - The Giant of Ariège

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Road Cycling Routes around Ustou

Hiking around Ustou

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GR 10 – Explore the Ariège Pyrenees crossing the Pyrenees

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Luc Gesell

Tips from the Community

Rafael Bosch
August 21, 2026, Refuge du Pinet

Charming refuge in a magical place, especially at sunrise when the light enters the valley.

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We walked it today with 38C. But this is really a tough tour. Especially the last part is really climbing and scrambling.

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Fantastic scenary, but the walk is more a difficulty 2 rather than 1.

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A large mountain lake near the Refugi de Certascan hut. Today it looks like an estuary in Norway.

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Conveniently located hut for those who want to take the technically easiest, but with 2,000 meters of elevation gain, longest climb from the parking lot at L'Artigue to the peaks of Pic du Montcalm, Pica d'Estats, and Pic de Sotllo. The hut was already closed when I climbed in mid-October, but a winter room with approximately 14 beds was open. There's a cash register at the entrance, charging €8 per night.

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"The house by the lake..." Beautifully situated hut on the ascent path from the L'Artigue parking lot to several peaks, including Pic du Montcalm and Pica d'Estats (I also included the somewhat more difficult Pic de Sotllo, hence my photos here as a "highlight" of mountain hiking). The hut was already out of service in October 2024, but there was a winter room with approximately 14 beds. A cash register awaits a deposit of €8 per night.

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One of the most beautiful lakes in the Pyrenees, it is difficult to get to, but it is worth it.

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Oxígeno
November 14, 2022, Estany de Certascan

The Certascán lake is the largest glacial lake in the Catalan Pyrenees and rivals the Tort lake for being the largest in the whole mountain range. The final section of the climb is quite comfortable because it is well trodden by all the mountaineers who climb to the magnificent Pyrenean lake. At the entrance to the glacial cirque there is a small lagoon surrounded by cliffs and rocky outcrops and then there is the Certascan Refuge, practically on the shore of the lake. The path continues along the Coll de Certascan towards other places and mountain valleys at the foot of beautiful peaks, such as the Certascan peak (2,853 m), an interesting option for lovers of peaks. The return is along the same path until the detour of the path that descends from the Llurri gap. At this crossroads, continue straight ahead, going slightly uphill, and leave a path that goes down to the right towards the Canalada dam and the forest track that goes up from Montalto. The trail jumps over a small shoulder on the slope of the mountain range and begins a long descent towards the Vall de Cardós. The path is marked with the white and red signs of the long-distance path that connects the GR-11 of the Senda Pirenaica with the French paths GR-10 and Alta Ruta Pirenaica or Haute Randonée Pyrénéenne (HRP).

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Frequently Asked Questions

What are some popular hiking trails around the lakes near Ustou?

Many lakes around Ustou are popular hiking destinations. For a pleasant, shaded walk, consider the trail to Guzet Pond, which is particularly recommended for warmer weather. For more challenging routes, the area around Pinet Refuge provides access to various peaks of the Montcalm massif. You can find detailed hiking routes in the Hiking around Ustou guide.

Are there any family-friendly lakes or trails in the Ustou area?

Yes, Guzet Pond is considered family-friendly, offering an idyllic setting bordered by vegetation. Its hiking route is largely shaded, making it comfortable for families, especially during warmer months. Remember to pack a picnic and enjoy the serene environment.

What is the best time of year to visit the lakes around Ustou?

Visiting in spring is highly recommended, as you can witness the impressive Ars waterfall as part of a longer hiking loop that includes Guzet Pond. Summer offers pleasant conditions for high-altitude hikes, while autumn brings beautiful colors to the landscape. Be prepared for potentially windy conditions and pack appropriate clothing, even in summer.

Can I find accommodation or refuges near the high-altitude lakes?

Yes, the Pinet Refuge, located at an altitude of 2,240 meters, offers overnight stays and even features a winter room for hikers. This refuge is a key access point for exploring the Montcalm massif and nearby lakes like Estats Pond.

What kind of natural features can I expect to see when visiting the lakes?

The lakes around Ustou are nestled in a stunning natural landscape, primarily known for their high-mountain glacial formations. You'll encounter picturesque lakes with crystal clear waters, lush vegetation, and panoramic views of the Ariège mountain range. Areas like Estany de Romedo de Dalt are excellent examples of these beautiful glacial basins.

Are there options for multi-day hikes in the region?

Yes, the high-altitude lakes and refuges like Pinet Refuge provide excellent opportunities for multi-day hikes. The refuge offers overnight stays, allowing hikers to explore various peaks of the Montcalm massif and other nearby lakes over several days. The area around Estany de Romedo de Dalt is also part of longer routes, offering a sense of solitude for extended treks.

How accessible are the lakes around Ustou, particularly regarding parking?

Many lakes, especially those at higher altitudes, require hiking to reach. While specific parking details for each trailhead are best researched locally, trails often start from designated parking areas. For instance, the ascent to Labant Pond can be accessed from the Coumebière Plateau, which typically has parking facilities.

Are there any lakes known for their tranquility or solitude?

Absolutely. Estany de Romedo de Dalt is particularly appreciated for its solitude and splendid scenery. Hikers often report encountering very few people, making the experience extra special and peaceful. Estats Pond, nestled in a beautiful rocky valley near Pinet Refuge, also offers a peaceful break.

What should I pack for a hike to the lakes, especially in spring?

For hikes to the lakes, especially in spring, it's essential to pack layers of clothing suitable for varying weather conditions, as it can be windy. Bring enough water and snacks, as well as appropriate hiking footwear. If visiting in spring, consider waterproof gear due to potential snowmelt and the Ars waterfall. Don't forget sun protection and a camera for the magnificent panoramas.

What outdoor activities, besides hiking, can I do near the lakes?

Beyond hiking, the region around Ustou offers various outdoor activities. You can explore road cycling routes like the 'Col de la Core Loop from Seix' or 'Agnès Pass – Lers Pass loop from Aulus-les-Bains'. For touring cyclists, there are routes such as 'Along the Salat by Seix'. Find more details in the Road Cycling Routes around Ustou and Cycling around Ustou guides.

Are there any lakes suitable for wild swimming?

While the high-altitude lakes offer clear, often cold water, specific regulations for wild swimming can vary. Many lakes, such as the sizable Étang d'Arbu (not a Komoot highlight but mentioned in regional research), have clear water even during dry summers and offer spots to relax by the water's edge. Always check local guidelines and safety information before attempting to swim in natural bodies of water.

What makes the high-altitude lakes around Ustou unique?

The high-altitude lakes around Ustou are unique for their pristine natural beauty, tranquil settings, and their formation within glacial basins. They often feature crystal clear waters, dramatic rocky valleys, and provide access to challenging mountain peaks. The sense of solitude and the untouched landscapes, as seen at Estany de Romedo de Dalt, contribute to their special appeal.

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Still not found your perfect lake around Ustou? Check out the guides of these regions to see even more beautiful places.

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