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

Routes

Running trails & routes

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

Hard

runners

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

01:55

11.2km

520m

Running

Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Last updated: May 13, 2026

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Your route passes through a protected area

Please check local regulations for:

Parc national des Pyrénées (Aire d'adhésion)

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1.52 km

Over the Col you come to Aulon in a beautiful mountain village with a good BIB gourmand restaurant Auberge des Ayrelets.
Col is located below the Pic de Bastan d'Aulon at 2721m.
Tour to the highlight: komoot.de/tour/340594555?ref=itd

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2.91 km

Upper Bastan Lake

Highlight • Lake

Also at this lake you will find good camping facilities, which were also well used. Since you are no longer in the Neouvielle reserve, you can leave the tent there …

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3.20 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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3.56 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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6.03 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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8.60 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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