Middle Bastan Lake – Upper Bastan Lake loop from Col de Portet

Hiking trails & Routes

Middle Bastan Lake – Upper Bastan Lake loop from Col de Portet

Hard

5.0

(10)

175

hikers

Middle Bastan Lake – Upper Bastan Lake loop from Col de Portet

06:57

17.9km

660m

Hiking

Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required. The starting point of the route is right next to a parking lot.

Last updated: August 20, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc national des Pyrénées (Aire d'adhésion)

Waypoints

Start point

Parking

Get Directions

30 m

Portet Pass

Highlight • Mountain Pass

Superb climb! Route reserved for cyclists from 10 a.m. to 3 p.m. at a certain time of the year! Watch out for the cows on the descent!

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2.72 km

View of the Lac de l'Oule Dam

Highlight • Viewpoint

Very nice view of the dam, the hike leading to Lac de Bastan is very nice, especially when you start to see the refuge and the lake.

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5.19 km

Middle Bastan Lake

Highlight • Lake

The middle lake lies, as its name suggests, between the lower and upper lakes. The three of them form a string of lakes called the Bastan lakes. Of glacial origin, …

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5.87 km

Upper Bastan Lake

Highlight • Lake

The upper lake of Bastan is the last and the highest (2260 meters above sea level) of the three lakes of Bastan.

This set owes its name to its staircase …

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8.00 km

Lac de Caderole

Highlight • Lake

There is a nice longer loop around the lake or a short cut toward col de Bastanet.

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8.01 km

Hourquette de Caderolles

Highlight • Mountain Pass

La Hourquette de Caderolles is a beautiful rocky bar at an altitude of 2495 meters which takes you west of the Néouvielle massif.

At the top, you can savor the view of Lake Port Bielh.

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10.8 km

Lakes of Bastanet

Highlight • Other

Two of the many lakes on one of my day trips. About at the end of the second lake you can see the Lac de l'Oule from above over a small pass to the south. Picture is above.

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12.3 km

Bastan Refuge

Highlight • Restaurant

The Bastan refuge is located a little higher up, on the shores of Lac du Milieu. It is open from the last weekend of May to the first weekend of …

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17.9 km

End point

Parking

Way Types & Surfaces

Way Types

17.2 km

333 m

323 m

< 100 m

Surfaces

14.7 km

2.71 km

571 m

Elevation

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

Highest point (2,510 m)

Lowest point (2,100 m)

Weather

Friday 16 October

11°C

6°C

69 %

Additional weather tips

Max wind speed: 7.0 km/h

to get more detailed weather forecasts along your route

Comments

August 1, 2022,refuge bastan jour 2 par port bielh

After a night at the refuge of Bastan, discovery of some of the many lakes of the PNP without forgetting the famous blueberry tartlet while going back through the refuge before returning to the Col de Portet.

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