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Lower Bastan Lake – Middle Bastan Lake loop from Lac Supérieur

Routes

Hiking trails & Routes

Lower Bastan Lake – Middle Bastan Lake loop from Lac Supérieur

Hard

4.6

(53)

591

hikers

Lower Bastan Lake – Middle Bastan Lake loop from Lac Supérieur

05:26

14.8km

470m

Hiking

Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.

Last updated: June 27, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc national des Pyrénées (Aire d'adhésion)

Waypoints

Start point

Alpine Hut

Get Directions

1.55 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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1.91 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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3.86 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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6.69 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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9.16 km

Col du Portet and lakes d'Oule, Bastan, Supérieur

Highlight • Mountain Pass

We even had the chance to admire the marmots ... Magnificent views all along the paths. A little refreshment at the Bastan lake refuge. We will come back there with the tents to camp around the lakes of altitude.

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13.6 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 …

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14.4 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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14.8 km

End point

Alpine Hut

Way Types & Surfaces

Way Types

12.9 km

1.22 km

616 m

Surfaces

10.6 km

2.52 km

1.66 km

Elevation

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

Highest point (2,310 m)

Lowest point (2,100 m)

Weather

Friday 21 August

14°C

7°C

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Comments

July 26, 2025,Les lacs de Bastan

Magnificent circular hike starting from the Portet pass. Along the GR10 trail, discovering its beautiful lakes. Lake Oule, lower lake and upper lake of Bastan.

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Lower Bastan Lake – Middle Bastan Lake loop from Lac Supérieur

Lakes of Bastanet

Pretty little lake

Upper Bastan Lake

Bastan Refuge

View of the Lac de l'Oule Dam

Col du Portet and lakes d'Oule, Bastan, Supérieur

Lower Bastan Lake

Middle Bastan Lake

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