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Mountain biking trails

France

Bourgogne-Franche-Comté

Saint-Claude

Bonlieu

Shore of Lac de Narlay – Grand Maclu Lake loop from Bonlieu

Routes

Mountain biking trails

France

Bourgogne-Franche-Comté

Saint-Claude

Bonlieu

Shore of Lac de Narlay – Grand Maclu Lake loop from Bonlieu

Moderate

4.7

(9)

riders

Shore of Lac de Narlay – Grand Maclu Lake loop from Bonlieu

03:03

43.3km

640m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: May 28, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional du Haut-Jura

Waypoints

Start point

Parking

Get Directions

4.98 km

Shore of Lac de Narlay

Highlight • Lake

The water in this lake is extraordinarily clear!

Translated by Google •

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5.36 km

Grand Maclu Lake

Highlight • Lake

Small, rocky stretch of beach that you can climb down to, as well as good views of Lac Le Grand Maclu.

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6.16 km

Lake Petit Maclu

Highlight • Lake

Nice path along Lac du Petit Maclu.

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7.86 km

View of Lac de Narlay

Highlight • Viewpoint

beautiful view of the Lac de Narlay

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18.9 km

View of Lake Chalain from Fontenu

Highlight • Viewpoint

Lac de Chalain is the largest natural lake in the Jura. Of glacial origin, this lake covers the entire bottom of the Chalain valley with turquoise, which marks a long …

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19.6 km

View of Lac de Chalain

Highlight • Viewpoint

23.0 km

View of Lac de Chalain

Highlight • Viewpoint

An imposing lake, of a remarkable blue!

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25.7 km

Lac de Chalain

Highlight • Lake

Kurze Pause am Lac de Chalain

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43.3 km

End point

Parking

Way Types & Surfaces

Way Types

21.9 km

15.1 km

3.33 km

1.73 km

695 m

484 m

< 100 m

Surfaces

25.1 km

10.9 km

5.52 km

1.15 km

418 m

230 m

Elevation

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

Highest point (810 m)

Lowest point (490 m)

Weather

Thursday 25 June

34°C

16°C

11 %

Additional weather tips

Max wind speed: 6.0 km/h

to get more detailed weather forecasts along your route

Comments

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Shore of Lac de Narlay – Grand Maclu Lake loop from Bonlieu

Shore of Lac de Narlay

Grand Maclu Lake

Lake Petit Maclu

View of Lac de Narlay

View of Lake Chalain from Fontenu

View of Lac de Chalain

View of Lac de Chalain

Lac de Chalain

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