4.7
(3)
28
hikers
4
hikes
Mountaineering around Lac de Mar features a landscape dominated by high peaks and glacial lakes, characteristic of the Pyrenees. The terrain includes rugged granite formations and steep ascents, with routes often leading to prominent summits. The area is defined by its alpine environment, offering challenging climbs.
Last updated: July 4, 2026
5.0
(1)
2
hikers
12.4km
05:38
640m
640m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(1)
11
hikers
11.5km
05:53
930m
930m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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6
hikers
Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.
4.0
(1)
9
hikers
16.1km
05:42
570m
570m
Hard mountaineering route. Very good fitness required. Mostly accessible paths. Sure-footedness required.
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This refuge is named after the Restanca lake, next to which it is located. It is located at an altitude of 2010 metres in the Alto Arán. It has capacity for 80 guests, divided into six rooms. It also has hot water showers, food service and a bar.
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Lake Obago is a lake of glacial origin located at 2,236 m in the municipality of Alto Arán, in the Valle de Arán region. Lake Obago is one of the largest lakes in the Cirque de Colomers, a glacial cirque of more than 50 lakes crowned by peaks that exceed 2,500 meters, such as the Tuc de Ratera (2,861 m) or the Gran Tuc de Colomers (2,933 meters).
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Lake Mayor de Colomers is a lake of glacial origin located at 2128 m in the municipality of Alto Arán, in the Valle de Arán region. Lake Mayor de Colomers is one of the largest lakes in the Cirque de Colomers, a glacial cirque of more than 50 lakes crowned by peaks that exceed 2,500 meters, such as the Tuc de Ratera (2,861 m) or the Gran Tuc de Colomers (2,933 meters). ). The Colomers refuge is located near the lake.
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The lake of Còth de Baish can be seen from the pass of the same name, at an altitude of 2,190 metres. From the pass it is possible to descend to the lake to admire it up close.
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One of the smallest, but also very flirtatious.
3
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In my opinion, the most beautiful lake on the tour.
2
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There are over 10 mountaineering routes documented around Lac de Mar on komoot, primarily catering to experienced mountaineers due to their challenging nature.
The optimal season for mountaineering around Lac de Mar is typically from late spring to early autumn (June to September). During this period, snowmelt has usually cleared higher passes, and weather conditions are generally more stable, though alpine weather can change rapidly.
Yes, several routes around Lac de Mar are designed as loops. For example, the Restanca Refuge – Montardo Summit Cairn loop from Refugi de la Restanca offers a challenging circular experience, as does the Punta Alta Summit – Presa de Caballers loop from Pantà de Cavallers.
The mountaineering routes around Lac de Mar are predominantly difficult, characterized by rugged granite formations and steep ascents. There are no routes classified as easy, and only a couple are considered moderate. The area is best suited for experienced mountaineers seeking challenging climbs.
Mountaineering around Lac de Mar features a classic Pyrenean alpine environment. You can expect rugged granite formations, steep ascents, and routes often leading to prominent summits, with glacial lakes dotting the landscape.
The area is highly rated by the komoot community, with an average score of 4.9 stars from 9 reviews. Mountaineers often praise the challenging climbs, the stunning panoramic views from the summits, and the pristine alpine environment.
The Lac de Mar area is part of the Aigüestortes i Estany de Sant Maurici National Park. While general access for hiking is usually free, specific activities or overnight stays in certain areas might require permits or reservations, especially for refuges. It's always advisable to check with the park authorities before your trip.
Absolutely. For a significant challenge, consider the Besiberri New Refuge – Besiberri Sud 3023m loop from Noguera Ribagorçana, which involves substantial elevation gain and traverses high alpine terrain.
As Lac de Mar is located within a National Park, there are often strict regulations regarding dogs to protect wildlife. Typically, dogs are allowed on a leash on designated trails, but access might be restricted in certain sensitive areas or during specific seasons. Always verify the current park regulations before planning your trip with a dog.
Given the challenging alpine environment, essential gear includes sturdy mountaineering boots, appropriate layers for varying weather conditions (even in summer), waterproof and windproof outerwear, navigation tools (map, compass, GPS), sufficient water and food, a first-aid kit, and sun protection. Depending on the specific route and season, ice axe and crampons might also be necessary.
Many routes in the Lac de Mar area traverse landscapes dotted with glacial lakes. The Besiberri Sud 3023m – Estany Gémena de Dalt loop from Riu de Sant Nicolau, for instance, offers stunning vistas of several high-altitude lakes, including Estany Gémena de Dalt.
Access points to the national park, such as those near Pantà de Cavallers or Noguera Ribagorçana, typically have designated parking areas. However, during peak season, these can fill up quickly. It's advisable to arrive early or consider public transport options where available.


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