4.8
(426)
3,930
hikers
41
hikes
Family friendly hiking trails around Estany Fosser are set within the Aigüestortes i Estany de Sant Maurici National Park, a region defined by its spectacular glacial landscapes. This area features numerous glacial lakes, U-shaped valleys, and cirques, all sculpted by ancient ice. Towering peaks, including Pic Fosser and the nearby Pic de Tort (2,904 m), dominate the high-mountain scenery. The diverse ecosystems range from lush alpine pastures to verdant valleys, offering varied terrain for exploration.
Last updated: May 17, 2026
4.8
(8)
114
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.7
(3)
15
hikers
11.6km
04:16
400m
400m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

Sign up for free
5.0
(4)
41
hikers
5.93km
02:15
310m
310m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
25
hikers
23.5km
09:49
1,420m
1,420m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(1)
17
hikers
13.0km
06:20
1,130m
1,130m
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
The Colomina refuge is located at an altitude of 2,425 metres, at the head of the Vall Fosca, next to the lake of the same name. It has 40 places to stay overnight, hot showers and food service, always subject to reservation.
0
0
Attention! This cable car is not suitable for people with walking difficulties as there are about 80 steep steps to climb!
0
0
The path is rocky but can be done well. The color of the water is impressive and it is worth stopping for a moment and contemplating the wonderful landscape.
1
0
A lake of glacial origin that is located at an altitude of 2,429 meters. It is the largest and deepest in the Val d'Aran.
1
0
A lake of glacial origin that is located at an altitude of 2,351 m at the head of the Vall Fosca.
1
0
A lake of glacial origin that is located at an altitude of 2,368 m.
1
0
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.
0
0
Another of the tunnels that we found during our passage through the Vall Fosca greenway. An emblematic place, at 2200 meters of altitude, 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 to cross the tunnels, some are a little longer or have the occasional puddle.
1
0
The Estany Fosser area, nestled within the Aigüestortes i Estany de Sant Maurici National Park, offers a wide variety of hiking experiences. You'll find over 40 routes in total, with 2 easy and 20 moderate trails that are generally suitable for families looking to explore the stunning glacial landscapes.
The region boasts diverse trails, many of which are well-maintained and offer manageable distances and elevation gains, perfect for families. The Lago Gento via the Canal de Pigolo route, for instance, provides a moderate challenge with rewarding views, while other paths lead to picturesque glacial lakes without requiring extensive alpine experience.
The best time for family hiking around Estany Fosser is typically from late spring to early autumn (June to September). During these months, the weather is generally milder, trails are clear of snow, and the alpine pastures are vibrant. Always check local weather conditions before heading out, as mountain weather can change rapidly.
Yes, there are several excellent circular routes that are great for families. A popular option is the Colomina Refuge – Estany Tort loop from Estany Gento. This moderate trail offers beautiful views of the glacial lakes and surrounding peaks, providing a fulfilling day out without retracing your steps.
Hikers will be immersed in a landscape shaped by glaciers, featuring U-shaped valleys, cirques, and numerous glacial lakes. Keep an eye out for the towering peaks like Pic Fosser and the dramatic geological formations. The entire area is part of the Aigüestortes i Estany de Sant Maurici National Park, ensuring pristine natural beauty at every turn.
The Aigüestortes i Estany de Sant Maurici National Park has specific regulations regarding dogs. While dogs are generally allowed in the peripheral zones of the park, they are often restricted or must be kept on a leash in the core protected areas to preserve wildlife. It's advisable to check the specific rules for each trail or section of the park you plan to visit beforehand.
The Estany Fosser area is highly rated by the komoot community, with an average score of 4.8 stars from over 400 ratings. Reviewers often praise the spectacular mountainous landscapes, the pristine nature of the Aigüestortes i Estany de Sant Maurici National Park, and the rewarding views of the glacial lakes and valleys.
While many trails in the region are moderate, there are easier sections and paths that can be adapted for younger children. Look for routes with minimal elevation gain and shorter distances. The area around Lago Gento, for example, offers more accessible paths that can be enjoyed by families with toddlers, perhaps as shorter out-and-back walks rather than full loops.
Access to the Aigüestortes i Estany de Sant Maurici National Park, which encompasses Estany Fosser, often involves a combination of private vehicle and designated park transport during peak seasons. Specific public transport options directly to all trailheads might be limited, so it's best to research shuttle services or park-specific transport from nearby towns like Espot or Boí, especially for reaching higher-altitude starting points.
Parking facilities are typically available at key access points to the Aigüestortes i Estany de Sant Maurici National Park, such as near the entrance points or at designated visitor centers. For routes like the Colomina Refuge – Estany Tort loop, parking might be found near Estany Gento, which often serves as a starting point for many trails in the Vall Fosca area. Always arrive early during peak season to secure a spot.
While the glacial lakes are incredibly inviting, wild swimming regulations within the Aigüestortes i Estany de Sant Maurici National Park can be strict to protect the delicate ecosystem. It's generally not permitted in many areas. Always look for signage or consult park authorities regarding specific rules for swimming in any of the lakes, including Estany Fosser itself, to ensure compliance with conservation efforts.


Browse the best Hikes in other regions.