4.6
(449)
3,900
hikers
68
hikes
Hiking around Estany de Certascan offers routes through a high-mountain glacial landscape in the Catalan Pyrenees. The region features the large Estany de Certascan lake, surrounded by a dramatic glacial cirque and rocky outcrops. Trails traverse alpine meadows, forested valleys with beech and fir trees, and lead to mountain peaks such as Pic de Certascan (2,853 m). The area is part of the Alt Pirineu Natural Park, preserving diverse ecosystems.
Last updated: June 25, 2026
5.0
(1)
14
hikers
6.85km
02:05
210m
210m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
5
hikers
11.1km
04:55
640m
640m
Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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5
hikers
2.52km
01:11
220m
190m
Moderate hike. Great for any fitness level. Mostly accessible paths. Sure-footedness required.
2
hikers
10.5km
05:01
640m
650m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
9
hikers
10.1km
05:10
810m
810m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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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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One of the most beautiful lakes in the Pyrenees, it is difficult to get to, but it is worth it.
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At the foot of the famous Estany de Certascán.
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Beautiful alpine lake with a bluish hue.
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Warm welcome excellent meal. hearty picnic
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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 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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The path goes through a beautiful horsetail of singing waters and goes up to the outlet of the Romedo de Baix pond, which is raised with a stone wall to increase the capacity of the reservoir. Admirers of glacial modeling in high mountains can take advantage of and visit the cirques of the Guiló ponds. The route crosses the dam and follows the access lane for about two hundred metres, until a sharp curve where there is a small hut and markings for the mountain routes. The mountain crossing leaves the track and continues straight ahead along the shore of the lake, which offers a spectacular view on this slope. The trail has red and green paint dots and red and white chevrons. On a small rocky outcrop there is a rope for a channel to facilitate climbing. On the opposite side, the rope has disappeared, only the pegs remain, but it is lowered without complications. The path is well marked with the colors of the paths through an impeccable glacial valley to the shore of the Romedo de Dalt pond, completely natural, without artificial dams and a beautiful island decorating the mountain lagoon. In the same glacial basin are the Senó, Colatx and Punturri ponds. The red and white marks go up to the left of the Romedo de Dalt pond to the gap in the Sierra de Llurri, a spectacular pass between the peaks of the mountains of the Alto Pirineo Natural Park. The trail looks for the right descent to go down between the dizzying spurs of Llurri and connect with the path that goes up to the Certascán pond.
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Beautiful high mountain lake within the Alt Pirineu Natural Park. The famous mountain traverses such as La Puerta del Cielo and Alta Ruta Pirinenca surround the lake. Undoubtedly a place to stop and enjoy nature at 2005 meters of altitude.
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The terrain around Estany de Certascan is characterized by a stunning glacial landscape. You'll encounter high-mountain glacial cirques, rocky outcrops, and deep blue waters of the lake itself. Trails also traverse rich alpine flora, high mountain meadows, and at lower elevations, impressive thick forests of beech and fir trees.
There are nearly 70 hiking trails documented for the Estany de Certascan region. These range from easier paths suitable for beginners to very demanding routes requiring excellent physical condition and alpine experience.
Yes, while many routes are challenging, there are 4 easy trails available. For a shorter, moderate option, consider the Refugi Certascan loop from Refugi de Certascan, which is 2.5 km long and takes about 1 hour 11 minutes through alpine terrain.
Beyond the impressive Estany de Certascan itself, you can expect to see dramatic glacial cirques, high mountain peaks like Pic de Certascan (2,853 m), and diverse alpine and forested valleys. The area is also home to beautiful waterfalls, such as the Ars waterfall, and numerous other high-altitude lakes like Estany de Romedo de Dalt.
Yes, the Estany de Certascan area is integrated into renowned long-distance routes. It's part of the Haute Randonnée Pyrénéenne (HRP) and the famous "La Porta del Cel" (The Door to Heaven) circuit, which is a multi-day trek connecting several refuges and exploring breathtaking landscapes.
Yes, the Refuge de Certascan is conveniently located practically on the shore of the lake at 2,240 meters. This guarded refuge provides essential support for multi-day treks, offering accommodation and meals.
The best time to hike in Estany de Certascan is typically during the warmer months, from late spring to early autumn (June to September), when the snow has largely melted from higher elevations and the weather is more stable. However, conditions can change rapidly in the mountains, so always check the forecast.
The area is highly rated by the komoot community, with an average score of 4.6 stars from over 400 reviews. Hikers frequently praise the stunning glacial landscapes, the dramatic views of the lake and surrounding peaks, and the challenging yet rewarding nature of the trails.
Yes, there are several circular routes. For example, the Refugi Certascan – Estany de Romedo de Dalt loop from Refugi de Certascan is a challenging 11.1 km path that explores multiple high-altitude lakes and mountain passes in a loop.
The trails around Estany de Certascan offer a wide range of difficulties. There are 4 easy routes, 25 moderate routes, and 40 difficult routes. Many of the more demanding trails require excellent physical condition, sure-footedness, sturdy shoes, and alpine experience due to the high-mountain environment.
Yes, Estany de Certascan lies within the Alt Pirineu Natural Park, which is Catalonia's largest natural park. This designation ensures the preservation of its diverse ecosystems, making it a haven for protected species of both animals and plants.
Yes, some paths around Certascan hold historical significance. They were used by Spanish Republicans fleeing the civil war and Jews escaping the Nazi holocaust during World War II, earning some routes the name "Mountains of Liberty."


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