Ruta de los Tres Refugios: 6-day trek with Pico Posets summit in the Pyrenees

• 4 hours

• 9.4 kilometers

• ↑ 621m, ↓ 53m

• Easy

On the first day, we will meet in the town of Benasque and carpool to the Aneto Campground. We will leave our cars parked here for the duration of our trek. From the campground, we will begin our trek toward the Estos Hut.

A forested path will lead us up the Estos River to the entrance of the Posets-Maladeta Natural Park. From here, we will follow a trail to the Estos Hut. Along the way, we will have views of Pico Posets and the surrounding mountain peaks.

• 6 hours

• 11.5 kilometers

• ↑ 750m, ↓ 850m

• Intermediate

After breakfast, we will set out toward the Biadós Hut.

From the Estos Hut, we will follow the Estos River up the valley and cross it upon reaching the Chistau Pass. At this point, we will have incredible views over the entire Estos Valley.

From the top of the mountain pass, we will descend through alpine meadows into the Chistau Valley below. Once we reach the Cinqueta River, we will cross to the other side and continue along the trail.

After passing by the Añes Cruces Cabin, we will have nearly arrived at our destination: the Biadós Hut.

• 7.5 hours

• 9.6 kilometers

• ↑ 1125m, ↓ 800m

• Intermediate

Heading east from the Biadós Hut, we will cross a small ravine and trek past a barn and some haystacks before once again crossing the Cinqueta River.

Once on the other side, we will continue onward through the Riberata Ravine until reaching the Ibón de Millars. From this glacial lake, we will climb up to the Collado de Eriste (de la Forqueta). At 2864m, this mountain pass will prepare us for our summit on Pico Posets the following day.

From the mountain pass, we will descend toward the Ibón de Llardaneta, another glacial lake. We will follow another ravine from here, crossing to the other side just before reaching the Ángel Orús Hut (del Forcau).

• 9 hours

• 11 kilometers

• ↑ 1275m, ↓ 1275m

• Difficult

Today, we will wake up earlier than usual in order to get an early start on the day.

Retracing our steps, we will return to the Ibón de Llardaneta and the Fonda Canal. We will follow this canal uphill and traverse a section that is often covered in snow. The climb from here to the summit of the Pico Posets (3369m) is steep, but the views from the top will be well worth the effort.

We will descend via the same route and spend the night back at the Ángel Orús Hut.

• 7.5 hours

• 10.5 kilometers

• ↑ 640m, ↓ 850m

• Intermediate

After breakfast, we will make our way toward the Ibones Valley.

Along the way, we will pass by the Llardaneta Hut and the Ibón de Eriste, a double glacial lake. Continuing upward from here, we will reach the Plana Pass (2700m). As we cross this mountain pass, we will trek along the coast of the Ibón de la Plana. We will also have spectacular views of Pico Posets.

On the other side of the pass, we will descend past glacial lakes until reaching the Perramó Pass. From this pass beside the granite peaks of Agulla de Perramó, we will have panoramic views of the Batisielles Valley below.

We will pass by several alpine lakes as we make our way toward the Estos Valley and the Cascada de Molseret. From this waterfall, we will once again find the ravine that leads us back to the Estos Hut.

• 2.5 hours

• 9.4 kilometers

• ↑ 53m, ↓ 621m

• Easy

On our final day, we will retrace our steps back to the Aneto Campground and return to Benasque to celebrate!