4.8
(426)
3,926
hikers
13
hikes
Waterfall hiking trails around Estany Fosser traverse a high-mountain landscape characterized by glacial lakes, winding rivers, and dense forests of black pine and fir. The region, located within the Pyrenees, features varied terrain with elevations ranging significantly, offering a dramatic backdrop for outdoor activities. Numerous waterfalls are scattered throughout the area, fed by abundant water sources, creating a dynamic environment for hikers.
Last updated: May 13, 2026
16
hikers
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.
16
hikers
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.

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4.5
(6)
58
hikers
8.52km
03:34
460m
460m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
4.3
(3)
23
hikers
13.1km
05:45
780m
780m
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.
5
hikers
18.5km
08:13
1,400m
1,400m
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.
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Attention! This cable car is not suitable for people with walking difficulties as there are about 80 steep steps to climb!
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A natural-looking lake (without a dam wall) in a grandiose setting, which invites you to take a bath at this point (no idea if it's allowed😇).
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Great waterfall (but only one of many) with a natural pool in front, which is also good for cooling off
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The cable car takes you from about 1700 to 2100 m and thus to a good starting point in the southern Aigües Tortes area. More accessible and less crowded than from the northeast via the Estany de Sant Maurici.
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Nice waterfall that we can see from the trail.
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Lake Tort ("crooked" in Catalan) is a lake of glacial origin. It is located at an altitude of 2,293 m.
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In an emblematic place such as the Vall Fosca, at an altitude of 2,200 meters, we will cross an old train track, currently in disuse, and we will cross its tunnels. In few places in the world can we find a train track at such a height. If we go with children, I recommend taking a small flashlight for the tunnels, some are a little longer or have the occasional puddle.
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There are over 10 dedicated waterfall hiking trails around Estany Fosser, offering a variety of experiences. The region, largely encompassed by the Aigüestortes i Estany de Sant Maurici National Park, is rich with winding waters and glacial features that create numerous cascades.
The waterfall hikes around Estany Fosser range from moderate to difficult. You'll find 6 moderate routes and 7 difficult routes, often involving significant elevation changes and high-mountain terrain. Hikers should be prepared for varied conditions.
You can expect a dramatic high-mountain landscape characterized by numerous glacial lakes (estanys), meandering rivers, and dense forests of black pine and fir. The terrain features valleys, alpine pastures, and rugged summits, with elevations ranging from 1,600 to over 3,000 meters. The 'Aigüestortes' (winding waters) that give the national park its name are a prominent feature, creating many picturesque waterfalls.
The best time for active tourism, including waterfall hiking, is generally from late spring to early fall. For higher altitude hikes, late June to late September is recommended, as the weather is more stable and snow has typically melted, allowing for better access to the trails and the full flow of the waterfalls.
Absolutely. The region is famed for its nearly 200 high-mountain glacial lakes, such as Estany de Sant Maurici and Estany Negre, which often serve as focal points for trails. You'll also encounter ancient forests, diverse flora and fauna, and dramatic peaks. The 'winding waters' themselves are a constant natural highlight, forming numerous waterfalls and streams throughout the landscape.
Yes, there are circular options that allow you to experience the waterfalls and return to your starting point. For example, the Salto del Rus – Estany Tapat loop from Sant Vicenç is a difficult 12.8 km trail that takes you past the Salto del Rus waterfall and other scenic spots.
While many areas in the Pyrenees are dog-friendly, it's important to check specific regulations for the Aigüestortes i Estany de Sant Maurici National Park, as national parks often have restrictions regarding pets, especially concerning wildlife protection. Always keep your dog on a leash and ensure they are well-behaved around other hikers and wildlife.
While many routes in this high-mountain region are moderate to difficult, there are shorter, less strenuous options. For instance, the Capdella Church – Salto del Rus loop from Sant Vicenç is a moderate 8.1 km trail that leads through forested areas and past the Salto del Rus waterfall, making it a more accessible option for families with older children.
The waterfall trails around Estany Fosser are highly regarded by the komoot community, with an average rating of 4.8 stars from over 400 reviews. More than 4,000 hikers have explored this varied terrain, often praising the stunning high-mountain scenery, the abundance of glacial lakes, and the refreshing beauty of the numerous waterfalls.
Access points to the Aigüestortes i Estany de Sant Maurici National Park, which encompasses the Estany Fosser area, typically have parking facilities. Villages like Espot and Boí serve as common starting points and offer services, including 4x4 taxi services, to reach various trailheads within the park. It's advisable to check specific trailhead information for parking availability and any potential fees.
Yes, during peak season, a Park Bus service operates within the Aigüestortes i Estany de Sant Maurici National Park, connecting key access points and trailheads. Additionally, 4x4 taxi services are available from nearby villages like Espot and Boí to transport hikers to various starting points within the park, providing convenient access to the high-mountain trails.
As Estany Fosser is located within or adjacent to the Aigüestortes i Estany de Sant Maurici National Park, there are generally no specific hiking permits required for day trips on marked trails. However, certain activities like overnight stays in mountain huts or specific protected zones might have regulations. It's always best to consult the official park website for the most current information on rules and any potential restrictions.


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