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Spain
Catalonia
Lleida
Val D'Aran
Naut Aran

Via Calda Trail

Moderate

4.4

(17)

266

hikers

Via Calda Trail

03:54

10.5km

400m

Hiking

Hike the moderate 6.5-mile Via Calda Trail through diverse Pyrenean landscapes, featuring forests, mountain paths, and glacial lakes.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

98 m

Aiguamog River

Highlight • River

Nice place dels Aiguamog, where the river meanders with its crystal clear waters.
It is worth not taking the taxi to go up to the Circ de Colomers and walk through the 4 km

Translated by Google •

Tip by

2

5.20 km

Colomèrs Dam

Highlight • Monument

Just ahead, to the right of the dam, you can see the Refugi de Colomers. If we continue along the bridge, we will find another stone building - surely dedicated …

Translated by Google •

Tip by

3

5.94 km

Estanh dera Lòssa

Highlight • Lake

Here you will find a wooden walkway over a flooded area where the Estanh dera Lòssa is located. It leads to the small bridge that crosses the Aiguamòg river. The views are incredible.

Translated by Google •

Tip by

B

10.5 km

End point

Parking

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Way Types & Surfaces

Way Types

7.17 km

3.24 km

< 100 m

Surfaces

6.91 km

3.31 km

195 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

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Friday 8 May

14°C

4°C

55 %

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Max wind speed: 10.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How long does it typically take to hike the Via Calda Trail?

The Via Calda Trail is a long-distance route, usually completed in five stages over approximately 80 to 88 kilometers. While the provided tour data covers a segment of about 10.5 km, the full trail is designed for multi-day trekking.

What is the difficulty level and terrain like on the Via Calda Trail?

The Via Calda Trail is generally considered moderate, suitable for hikers with good fitness. While much of the route involves walking in forests or on easy paths with minimal elevation, one day within the Aigüestortes i Estany de Sant Maurici National Park includes mountain paths, rocky sections, and some elevation. It's not a high-altitude trail with extreme ascents, but hikers should be prepared for varied mountain terrain.

What natural features and cultural highlights can I expect to see along the Via Calda Trail?

The trail offers a rich blend of mountain landscapes and cultural experiences. You'll encounter diverse scenery from pine forests to high-mountain environments with glacial lakes. Notable natural features include the Aiguamog River, Colomèrs Dam, and Estanh dera Lòssa. Culturally, the route passes through traditional spa towns like Caldes de Boí and Bahns de Tredòs, known for their natural hot springs, and villages with UNESCO-listed Romanesque churches.

Where can I park and access the Via Calda Trail?

The Via Calda Trail links Aigüestortes National Park and the Aran Valley. Specific parking information for the entire multi-stage route would depend on your chosen starting point. For the segment from Bahns de Tredòs, parking is typically available near the Balneario de Tredòs. Public transport options may be limited in some areas, so planning ahead is recommended. For detailed access points, it's best to consult local tourist information or the official website: visitpirineus.com.

What is the best time of year to hike the Via Calda Trail?

The best time to hike the Via Calda Trail is generally during the warmer months, from late spring to early autumn. This period offers more stable weather conditions and access to higher mountain sections. However, be aware that weather in mountainous regions can change rapidly, so always check forecasts before and during your trip.

Is the Via Calda Trail suitable for families or beginners?

While generally considered easy to moderate, the full Via Calda Trail is a long-distance route requiring a good fitness level and experience in hiking long distances. Some sections, particularly within Aigüestortes National Park, involve mountain paths and rocky terrain. For beginners or families with young children, it might be more suitable to tackle shorter, easier sections rather than the entire multi-day trek.

Is the Via Calda Trail dog-friendly?

Information regarding dog-friendliness for the entire Via Calda Trail is not explicitly provided. However, as parts of the trail pass through the Parque Nacional de Aigüestortes i Estany de Sant Maurici, it's crucial to check the specific regulations for dogs within the national park and surrounding protected areas, as rules often vary (e.g., leash requirements, restricted zones).

Do I need any permits or is there an entrance fee for the Via Calda Trail, especially within Aigüestortes National Park?

There is typically no general entrance fee for the Via Calda Trail itself. However, since a significant portion of the trail traverses the Parque Nacional de Aigüestortes i Estany de Sant Maurici, it's important to be aware of any specific regulations or permits that might apply within the national park, especially for activities like camping or certain access points. Always check the official park website for the most current information.

Does the Via Calda Trail connect with other hiking routes?

Yes, the Via Calda Trail intersects with several other notable routes. You may find yourself on sections of the Via Calda, HRP Variante 24.1, BTT 21: Salardú - Prüedo - Arties - Salardú, Prüedo, Els 7 llacs de Colomèrs, Carros de Foc, and Senda Pirenaica - E18 and E19.

Are there accommodation options or amenities along the Via Calda Trail?

Yes, a practical and appealing feature of the Via Calda Trail is the availability of accommodation options. The route passes through multiple small villages and traditional spa towns like Caldes de Boí and Bahns de Tredòs, where you can find places to stay, as well as cafes and other amenities.

What should I pack or wear for hiking the Via Calda Trail?

Given the varied terrain and potential for changing mountain weather, it's advisable to pack layers, including waterproof and windproof outer shells. Sturdy hiking boots are essential, especially for rocky sections. Don't forget sun protection, sufficient water, snacks, and a map or GPS device. If you plan to utilize the thermal waters, a swimsuit might be a nice addition.

Nearby routes

Moderate

4.9

553

Cascada de la Ratera y Mirador del Lago de San Mauricio desde Prat de Pierró — circular en el Parque Nacional de Aigüestortes i Estany de Sant Maurici

04:38h

13.9km

520m

Trail Reviews

🚶‍♀️Irma 🥾
August 23, 2023, 23.08.2023 Parc National Aigüestortes. Estany Mayor de Colomers

A hike in the Pyrenees in the Parc National Aigüestortes. Driven by car via Salardu to the map of the railway. From here along the creek through the pine forest and large wet areas caused by small books flowing down, the trail went up moderately. Only the last piece went steeply up. Up there the view of a high dam opened up. Behind the dam is the Estany Mayor de Colomers reservoir, which is "fed" through the tunnel from the reservoirs above. All in one a developed system. After a short break we went back the same way.

Translated by Google
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