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

Routes

Hiking trails & Routes

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

Hard

4.7

(15)

hikers

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

06:50

17.8km

780m

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: May 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!

Translated by Google •

Tip by

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.

Translated by Google •

Tip by

5.36 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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5.72 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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6.07 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 …

Translated by Google •

Tip by

7.60 km

Col de Bastanet

Highlight • Mountain Pass

The Col de Bastanet is 2,509 meters above sea level. It offers a splendid view of the various Bastan lakes.

Translated by Google •

Tip by

10.7 km

Lower Bastan Lake

Highlight • Lake

The lower lake forms a peaceful and preserved lake site, out of sight. You will have the feeling of entering a crater as it is protected by its environment. This …

Translated by Google •

Tip by

12.0 km

Lake L'Oule

Highlight • Other

17.8 km

End point

Parking

Way Types & Surfaces

Way Types

11.6 km

4.85 km

1.21 km

< 100 m

Surfaces

11.3 km

3.20 km

2.87 km

328 m

Elevation

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

Highest point (2,470 m)

Lowest point (1,820 m)

Weather

Monday 6 July

27°C

16°C

14 %

Additional weather tips

Max wind speed: 10.0 km/h

to get more detailed weather forecasts along your route

Comments

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

Portet Pass

View of the Lac de l'Oule Dam

Middle Bastan Lake

Bastan Refuge

Upper Bastan Lake

Col de Bastanet

Lower Bastan Lake

Lake L'Oule

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