4.6
(540)
4,751
hikers
9
hikes
Bus station hiking trails around Estany de Certascan are set within the high-mountain glacial landscape of the Catalan Pyrenees, part of the Alt Pirineu Natural Park. This region is characterized by the immense Estany de Certascan lake, which is the largest glacial lake on the southern side of the Pyrenees. The terrain includes alpine meadows, forested valleys with beech and fir trees, and dramatic glacial cirques with rocky outcrops. Notable peaks like Pic de Certascan (2,853 m) define the elevation,…
Last updated: October 2, 2026
5.0
(10)
65
hikers
8.18km
02:49
220m
220m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
4.7
(3)
17
hikers
13.1km
04:47
490m
490m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

4.0
(1)
14
hikers
17.1km
04:52
370m
370m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
4.3
(4)
17
hikers
21.1km
07:53
930m
930m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
9
hikers
2.20km
00:39
60m
60m
Moderate hike. Great for any fitness level. Mostly accessible paths. Sure-footedness required.
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Popular around Estany de Certascan
Nice campsite, fully immersed in nature, at the end of the valley, 5 km above Tavascan
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Beautiful meadow that is well worth a good nap in the shade of a tree after a day of walking 😜
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Hard climb but the lake is worth cooling off
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Tavascan is a picturesque mountain town on the banks of the Lladore river. Located in the Cardós valley, the town creates an idyllic picture with its Romanesque bridge uniting the two sides of the town, framed by mountains.
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The mountain path runs through the Pla de Boavi in a fantastic environment, the valley is very closed and completely surrounds the welcoming meadows of Boavi, it is a gap cracked by old glacial ice between huge and vertical slopes, the summits seem unattainable. And the forests overflow with beauty, wildlife and naturalness. The main lane has rut marks that go all the way to the meadow but you can walk anywhere. At the end, the path reaches the canyon that joins the torrents of Sellente, Broate and Romedo and creates the river of Noguerra de Lladorre. The main path continues to be marked with the red and white colors of the long-distance trail and continues over the wooden bridge that crosses the riverbed and climbs through the Broate forest. The path that climbs towards the Romedo and Certascán ponds begins before entering the bridge on the rocks on the left, climbs some aerial ledges over the gorge and immediately begins a fairly steep ascent through the trees of the Romedo ravine.
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Medieval bridge from the 13th century in the beautiful and small mountain town of Tavascán. The bridge is very well preserved and offers us a beautiful picture.
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On our arrival at Pla de Boavi, we will undoubtedly enjoy one of the most beautiful places in the Pyrenees. Always accompanied by the Lladorre river, with several bridges that help us cross it. We can cool off in the little pools of water that are in the area or rest in the beautiful meadow. From this area, many mountain itineraries begin.
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There are 5 bus-accessible hiking trails detailed in this guide for the Estany de Certascan region, primarily starting from Aulus-les-Bains. These routes offer a range of difficulties, from easy strolls to challenging full-day treks.
Yes, for an easier option, consider the GR 10 Ars Waterfall – Trail to the Ars Waterfalls loop from Aulus-les-Bains. This route is approximately 5.3 km long with moderate elevation gain, making it suitable for those seeking a less strenuous experience while still enjoying the natural beauty.
Many of the trails from Aulus-les-Bains lead to impressive natural features, most notably the Ars Waterfalls. The region is characterized by a high-mountain glacial landscape, with alpine meadows and forested valleys featuring beech and fir trees. While the routes in this guide focus on the Ars Waterfalls area, the broader Estany de Certascan region is known for its stunning glacial lakes and peaks.
Yes, all the routes listed in this guide are circular, starting and ending in Aulus-les-Bains, making them convenient for bus travelers. For example, the Ars Waterfall (Middle) – View of the Cascade d'Ars loop from Aulus-les-Bains is a moderate 10.3 km circular hike that takes you to a viewpoint of the waterfall.
The hiking routes in the Estany de Certascan region, including those accessible by bus, are highly regarded by the komoot community, with an average rating of 4.5 stars from over 400 reviews. Hikers often praise the stunning waterfalls and the immersive experience of the Pyrenean landscape.
Absolutely. For experienced hikers looking for a challenge, the Trail to the Ars Waterfalls – Cirque de Garbettou loop from Aulus-les-Bains is a difficult 18.8 km route with over 1,100 meters of elevation gain, offering a demanding full-day adventure through the high mountains.
While the routes directly from Aulus-les-Bains in this guide focus on the Ars Waterfalls and surrounding valleys, the broader Estany de Certascan area is home to numerous high-altitude lakes like Estany de Romedo de Dalt and Lake Mariola, and peaks such as Pic de Certascan. Reaching these often requires further travel or multi-day expeditions beyond the immediate bus-accessible trailheads.
The longest bus-accessible hike featured is the Trail to the Ars Waterfalls – Cirque de Garbettou loop from Aulus-les-Bains, spanning approximately 18.8 km. This difficult route offers an extensive exploration of the mountain terrain.
Yes, several routes explore the area's water features. The Trail to the Ars Waterfalls – Fouillet Waterfall loop from Aulus-les-Bains is a difficult 13.4 km hike that takes you past both the Ars Waterfalls and the Fouillet Waterfall, offering diverse waterfall views.
The elevation gain varies significantly across the routes. For instance, the easy GR 10 Ars Waterfall loop has about 236 meters of ascent, while more difficult routes like the Trail to the Ars Waterfalls – Guzet Pond loop from Aulus-les-Bains can involve over 835 meters of climbing, providing options for different fitness levels.
Yes, the Trail to the Ars Waterfalls – Guzet Pond loop from Aulus-les-Bains is a difficult 13.7 km hike that includes views of Guzet Pond, combining the beauty of waterfalls with serene mountain ponds.


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