Waters of Aneto

The Classic

Master the eternal water cycle on this 5-stage journey through the Kingdom of Aneto. Follow the circular route that connects the history of La Renclusa with the modernity of Llauset, overcoming more than 5,000 meters of elevation gain. You will accompany the water from its disappearance in Forau de Aigualluts to its reappearance in the Aran Valley, conquering legendary passes such as Collado de Salenques (2,809 m). A challenge of endurance and technique designed for those seeking maximum authenticity and a complete map of the heart of Maladeta.

As of

525,00 €

WATERS OF ANETO

THE CLASSIC

  • 5 stages
  • 76.3 km
  • +5,974 m/-5,974 m
  • Physical Difficulty: High
  • Technical Difficulty: High
Aguas del Aneto Route Map

FOLLOW THE TRAIL

THE ROUTE

DAY 1

Place of origin: Conangles Refuge

Arrival at the Conangles Refuge, where we will welcome you, introduce ourselves, and give a brief orientation talk about the high mountain crossing.
At this meeting point, we will give you your welcome pack, review the details of the route and the mountain conditions, and show you how to use the safety geolocation device that will be at your disposal throughout the tour. Here you can ask any last-minute questions and finish preparing your mountain equipment before beginning this adventure in the Pyrenees.

DAY 2/ STAGE 1

From the Conangles Refuge to the Cap de Llauset Refuge.

The route begins by ascending the valley in search of the Anglos lake basin. The trail progresses between mountain lakes and granite scree, steadily gaining altitude until it reaches the Coll de los Estanyets (2,524 m). From this point, a short descent takes us to the Cap de Llauset Refuge, the most modern in the Pyrenees, located in a purely mineral high mountain environment.

DAY 3/ STAGE 2

The balcony of the route, the Salenques Pass

A technical high-mountain route that circles the massif on its eastern side. The route climbs to Collado de Salenques (2,809 m), the highest point of the crossing and a privileged viewpoint of the Aneto Glacier. The descent is via Val de Salenques, a demanding terrain of boulders and loose rock that requires caution, finally climbing back up to the historic Refugio de la Renclusa.

DAY 4 / STAGE 3

The Mystery of Aigualluts and Coll de Toro

From Renclusa, we descend towards Plan de Aigualluts to witness the greatest mystery of the route: Forau de Aigualluts, where the waters of the glacier sink into a karst sinkhole. We then begin the technical ascent to Coll de Toro (2,237 m), the natural border with the Aran Valley. After reaching the top of the pass, the route descends sharply towards the Artiga de Lin basin, a breathtakingly vertical environment surrounded by glacial cirques where we will spend the night.

DAY 5 / STAGE 4

From the Artiga de Lin Refuge to Casau (Vielha)

We begin the day descending through the Artiga forest until we reach Uelhs deth Joèu, the exact point where the waters we saw disappear in Aigualluts reappear with thunderous force after a 4 km underground journey. After visiting this landmark, the route continues halfway up the hillside along paths with lush Atlantic vegetation, gently gaining height to flank the mountain until reaching the village of Casau, a privileged balcony overlooking the Aranese capital.

DAY 6 / STAGE 5

The Garonne River Basin

Last day of the journey to close the circular circuit. The itinerary goes up the valley looking for the connection back to the south entrance of the Vielha tunnel. We will cross areas of high grassland and ancient shepherds' paths, arriving at the Vielha Pass where we can say goodbye with the last spectacular views of the Aneto massif, before descending directly to the Conangles Refuge, the final point of the expedition, thus completing the cycle of water and rock.

WATERS OF ANETO

ADDITIONAL INFORMATION

Includes

All of this is included in your adventure:

Total Safety: Garmin device with geolocation and satellite technology. Includes constant professional monitoring by our team. Guaranteed communication with us even without cell service and an SOS button that immediately activates the rescue protocol.

Comfort: Half board in all shelters

Management: Registration and full reservation of guaranteed places.

Material: Official map of the Alpina route, official T-shirt, and passport for stamping at mountain huts.

Experience: Technical briefing, welcome drink at each shelter, and final toast.

Does not include

1. Transfers to/from Conagnes (contact us if you need transportation).
2. Personal expenses and tips.
3. Expenses arising from unexpected events, whether caused by third parties or weather conditions (delays, cancellations, floods, landslides, snowfall, natural disasters, etc.). New: you can take out flexible cancellation insurance to cover these situations.
4. Any service not specified in the "Includes" section.

Rates for 2026

Non-member: €551
Member (*): €525

(*) The federated price includes both FEDME and hut correspondence.

Extra Services

Accident insurance for the whole trip: 30 € per person consult conditions here.
Early cancellation insurance: 50 € per person check conditions here.
Flexible cancellation insurance: 99€ see conditions here.
Rental of Petlz ice axes and crampons: pack (6€ per day) / 1 tool (3€ per day).
Exclusive Ternua T-shirt: 18€

Aguas del Aneto Route

MORE THAN AN EXPERIENCE

More than just walking, you embark on a unique experience that begins long before you take your first step on the mountain.

Safety at every step

You will feel safe thanks to the latest technology in real-time monitoring, which allows us to intervene quickly if something does not go according to plan.

LEARNING AT EVERY STEP

Learn and evolve as a mountaineer with the videos and trainings we offer you, improving your skills to enjoy every mountain adventure to the fullest.

What do routers say about their experience with Alta Ruta?

YOUR EXPERIENCES

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Ernesto Ginel's profile picture
Ernesto Ginel
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The route was a great experience, and the excellent organization behind it—especially with the self-guided option—gives you the peace of mind you need to focus solely on enjoying the mountains. You don’t have to worry about booking mountain huts, maps, GPS tracks, hazardous areas, etc.—you can just enjoy yourself, knowing that if any problems arise along the way, they’ll be there to help. It’s been fantastic to discover these areas of the Pyrenees (Los Perdidos and Moliere-Besiberris) with them and in this way.
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Anthony Grumbach's profile picture
Anthony Grumbach
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Patricia and her team at La Alta Ruta were wonderful to work with. They helped us plan and book a customized 9-day trek along La Alta Ruta de Los Perdidos, made the refuge reservations, assisted us with transportation to and from Bujarueles, and provided accurate information and GPX tracks for the trail. They were responsive, knowledgeable, and reliable. The background essays they shared in weekly emails before the trip deepened our appreciation of the route’s geology, history, and culture. With their GPX files, paper map, and brief orientation meeting, we completed the route on our own, never needing to contact them during our trek—though we were reassured to know we could reach out if we needed help during an emergency in a foreign country. We’ve planned many of our own backpacking routes, but it was helpful and important to have their experienced guidance regarding what was unfamiliar, foreign territory for us. There are trail junctions with alternative routes that present different challenges, levels of exposure, or views. And while we were often on clearly defined and well-maintained trails, at other times the trails were more primitive—somewhat like being on a well-established cross-country route in the U.S. wilderness but with trail markers and more cairns. The Alta Ruta de Los Perdidos is as beautiful and challenging as described in other online trip reports and reviews. We are experienced backpackers in our 60s who are in good physical condition but are not competitive athletes. On our 9-day itinerary in early September 2026, many days were pleasantly long and tiring, but we built in some easier days that gave us time to take a break from the bustling refugios at a hotel in Gavarnie, climb a peak, take a day hike on a side trail, or simply savor a fantastic view and a beer at a picnic table outside a refugio. We found the refugios to be a fun contrast to our usual, much more isolated backpacking at home. We made a lot of new friends from Spain and other countries. We still had plenty of peaceful time in the mountains to ourselves during our days on the generally uncrowded trails. There was drinking water at every mountain hut. But because these trails have been used by sheep and cattle herds for centuries, when we refilled our bottles from streams or springs during the day, we both filtered and treated the water, as La Alta Ruta advised. I highly recommend this route and working with La Alta Ruta to plan a self-guided trip. And judging by the very happy hikers we dined with one night—who were with one of La Alta Ruta’s local guides—I’d also recommend their guided tours if that’s your preference.
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Eva Rodriguez's profile picture
Eva Rodriguez
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Everything was great; our guide, Toño, was very helpful throughout and very knowledgeable. I really enjoyed both the guide and the rest of the group. I'll be back next summer to do the entire Alta Ruta.
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Julen Legorburu's profile picture
Julen Legorburu
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A wonderful experience on a beautiful route, very well organized
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Patxi's profile picture
Patxi
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At the end of August, six of us completed the Monte Perdido Tour, including the ascent of Monte Perdido. A wonderful experience and extremely professional organization!!!!
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Jaume Julibert's profile picture
Jaume Julibert
Google Star 1Google Star 2Google Star 3Google Star 4Google Star 5Trustindex verifies that the original source of the review is Google.
In my case, the Alta Ruta de Molieres y Besiberris. A demanding route with technical sections that aren’t suitable for everyone. Top-notch organization: briefing, GPS tracking in case of any serious mishap or emergency, comprehensive information in the days leading up to the trip, daily monitoring, a phone line that answers any issues, alternative routes in case of bad weather, and services included at every overnight stop (mountain hut or hotel—and by the way, it’s a great idea to spend two nights in hotels); in other words, they take care of everything, and all you have to do is focus on the hike and enjoy “paradise.” A very secluded but incredibly beautiful route, covering three 3,000-meter peaks, with options to tackle a couple more along the same route. I’d do it again in a heartbeat!!! Thank you so much for everything!!!!
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Manuel Riveiro's profile picture
Manuel Riveiro
Google Star 1Google Star 2Google Star 3Google Star 4Google Star 5Trustindex verifies that the original source of the review is Google.
A fantastic route—a hike to enjoy and have a wonderful experience