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Spain
Catalonia
Lleida
Val D'Aran

Lac de Mar

The best running trails around Lac de Mar

4.9

(33)

2,160

runners

22

runs

Jogging routes around Lac de Mar are set within the high-altitude glacial landscapes of the Spanish Pyrenees, specifically within the Aigüestortes i Estany de Sant Maurici National Park. The region features a pristine glacial lake, surrounded by towering peaks and rugged topography. Trails often lead through alpine valleys, past forests of fir trees, and alongside numerous waterfalls and streams, offering varied terrain for running.

Best jogging routes around Lac de Mar

  • The most popular jogging route is Pantano de Cavallers…

Last updated: July 4, 2026

5

runners

#1.

Pantano de Cavallers — Parque Nacional de Aigüestortes i Estany de Sant Maurici

4.96km

00:55

270m

270m

Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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Hard

28

runners

6.50km

01:20

450m

450m

This difficult 4.0-mile (6.5 km) trail running route to Lake Besiberri in the Aran Valley offers challenging terrain and alpine views.

Hard
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Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard

Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Hard

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate
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Popular around Lac de Mar

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Tips from the Community

oriolrius1985
February 18, 2025, Río Nere in Vielha

great place

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jerome_cavalli
January 2, 2025, Río Garona

In fact, for the Aranese of the Val d'Aran, the real source, the Uelh dera Garona (eye of the Garonne), is located in the pastures of Plã de Béret, near the Baqueira Beret ski resort, therefore after Viehla BUT according to Norbert Casteret (search for the source with dyes in the 1930s), the main source is located to the east of the Maladeta massif, in Aragon, from the northern and eastern snowfields of the Aneto peak, whose water rushes into the Forau d'Aigualluts or Toro hole (altitude: 2,074 m), to change valleys by a resurgence at the Uelhs de Joeu (Eyes of the Jew) (at 1,658 m). It is at Plan dera Artiga de Lin (at the bottom of the small, almost uninhabited valley starting after the village of Es Bordes (instead of continuing on Viehla, leave the road on the right at Es Bordes to enter this small valley at the bottom of which is the resurgence)

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I have no idea what the shelter will be like, but they wanted to charge me 50 euros for 1 night, which is completely unacceptable for a SHELTER. Unacceptable price.

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The Nere river is one of the rivers that falls from the southern side of the Vall d'Aran mountains and collects the waters of the set of mountains, as is the case of Molieres. A river that enters from the south of the city and that crosses it with cold waters.

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Andriuu Coffi
January 30, 2024, Es Cabanes

Es Cabanes is a valley bottom that is below what is called Malh Nere and where there is a stable, an old cabin and a cross that must pay tribute to this area of the mountain.

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If you like mountain biking and narrow trails, you will love this route through the Garonne. It is a path with spectacular views of the riverbed and very easy to navigate.

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LaraFY
August 23, 2023, Cavallers Reservoir

Espot serves as a starting point for numerous routes in the Aigüestortes and Estany de Sant Maurici National Park. From here, it is possible to see the Valle de Boí and the Presa de Cavallers, which we can cross by means of a bridge to explore.

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Fantastic place with great views of the Valley. It is a starting point for many ascents.

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Frequently Asked Questions

What types of running trails can I find around Lac de Mar?

The Lac de Mar area offers a variety of running trails, primarily catering to moderate to difficult ability levels. You'll find routes that traverse alpine valleys, dense fir forests, and rugged, rocky terrains. While there are no easy routes listed, there are 7 moderate and 15 difficult trails, providing options for experienced runners seeking a challenge.

Are there any circular jogging routes in the Lac de Mar region?

Yes, there are several circular routes available for jogging. For example, the Molières Waterfall – South entrance of the Vielha Tunnel loop from Noguera Ribagorçana is a challenging 5.1-mile (8.3 km) trail that takes you through stunning alpine scenery and past waterfalls. Another option is the Sant Julià de Garós Church – Trail along the Garona River loop from Garòs, a moderate 6.5-mile (10.5 km) route.

What are some notable natural features or landmarks to see while running near Lac de Mar?

The region is rich in natural beauty. You can expect to see the pristine glacial Lac de Mar itself, with its small island Unhòla. The impressive massíf of Tossau de Mar rises to the north, offering dramatic alpine scenery. Many routes provide panoramic views of the neighboring Estany de la Restanca, and you might even spot the waterfall carrying water from Lac de Mar into Estany de la Restanca. Other peaks like Agujas de Travessani are visible around nearby Estany Negre.

Are there any challenging running routes for experienced runners?

Absolutely. The Lac de Mar area is known for its challenging terrain, with 15 out of 22 routes rated as difficult. A prime example is the Besiberri Lake Trail, a difficult 4.0-mile (6.5 km) path that navigates rugged mountain paths through alpine landscapes. Another demanding option is the Nere River in Vielha – Trail along the Garona River loop from Escunhau, which covers 11.4 miles (18.4 km) with significant elevation gain.

What do other runners say about the jogging experience in Lac de Mar?

The running trails around Lac de Mar are highly regarded by the komoot community, holding an impressive average rating of 4.9 out of 5 stars from over 30 reviews. Runners frequently praise the stunning glacial landscapes, the towering peaks, and the varied terrain that makes each run a unique adventure.

Are there any refuges or places to rest along the running trails?

Yes, the region offers practical amenities for adventurers. The Refugi de la Restanca, located near Estany de la Restanca, is a significant attraction providing accommodation, hot showers, food services, and a bar. It serves as an excellent base camp or resting point. Another refuge, Refugi Ventosa i Calvell, is also part of the broader network of trails around Lac de Mar.

What are the best times of year for running in Lac de Mar?

Given its high-altitude glacial environment (2,248 to 2,275 meters), the best time for running in Lac de Mar is typically during the warmer months, from late spring to early autumn, when trails are clear of snow and ice. Always check local conditions before heading out, as weather can change rapidly in the mountains.

Can I bring my dog on the running trails in Aigüestortes i Estany de Sant Maurici National Park?

The Aigüestortes i Estany de Sant Maurici National Park has specific regulations regarding dogs. Generally, dogs are allowed in the peripheral zone of the park but may be restricted or require leashes in certain core areas to protect wildlife. It's advisable to check the official park regulations or visitor information for the most current dog policy before planning your run.

Are there any routes that feature waterfalls?

Yes, the region is known for its beautiful waterfalls. The Molières Waterfall – South entrance of the Vielha Tunnel loop from Noguera Ribagorçana is a challenging route specifically highlighting waterfalls and alpine scenery. Additionally, you can often see the waterfall that carries water from Lac de Mar into Estany de la Restanca on routes that pass between these two lakes.

How many running routes are available around Lac de Mar?

There are over 20 dedicated running routes available around Lac de Mar, offering a diverse range of experiences. These include 7 moderate and 15 difficult trails, ensuring options for various fitness levels and preferences within the challenging mountain environment.

Is public transport available to access the running trails near Lac de Mar?

Access to the Aigüestortes i Estany de Sant Maurici National Park, where Lac de Mar is located, often involves a combination of private vehicle and designated park transport during peak seasons. For specific details on public transport options to trailheads like Pònt deth Ressec or near Refugi de la Restanca, it's best to consult local visitor information centers or the official park website, as services can vary seasonally.

What kind of wildlife might I encounter while running in the Lac de Mar area?

The Aigüestortes i Estany de Sant Maurici National Park is home to diverse alpine wildlife. While running, you might spot chamois, marmots, various bird species like eagles and vultures, and if you're very lucky, perhaps even an ibex. Remember to observe from a distance and respect their natural habitat.

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