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France

Bourgogne-Franche-Comté

Lac d'Ilay

Lakes

Bourgogne-Franche-Comté

Saint-Claude

La Chaux-Du-Dombief

Lac d'Ilay

Highlight • Lake

Lac d'Ilay

Recommended by 132 hikers out of 133

This Highlight is in a protected area

Please check local regulations for: Parc naturel régional du Haut-Jura

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Location: La Chaux-Du-Dombief, Saint-Claude, Bourgogne-Franche-Comté, France

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Best Hikes to Lac d'Ilay

4.6

(219)

1,154

hikers

1. Pic de l'Aigle and belvédère des Quatre Lacs — loop in the parc naturel régional du Haut-Jura

13.5km

03:55

290m

Intermediate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

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Intermediate

4.7

(87)

656

hikers

2. Lac du Petit Maclu – Lac du Grand Maclu loop from Le Frasnois

9.80km

02:37

110m

Intermediate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Intermediate

4.6

(65)

406

hikers

3. Bélvédère des Trois Lacs – Pic de l'Aigle loop from Le Frasnois

12.0km

03:29

250m

Intermediate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

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Intermediate

Tips

Kristian

August 19, 2025

Lac d'Ilay, also called Lac de la Motte, is a lake in the Jura department of France, about 14 km south of Champagnole in Franche-Comté. It lies at an altitude of 774 m in the municipalities of Le Frasnois and La Chaux-du-Dombief and covers an area of approximately 0.7 km². The lake is 1.9 km long, has a maximum width of 400 m, and has a small island (Île de la Motte). Its greatest depth is 32 m.

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Bas Linssen

August 13, 2020

One of the larger lakes in the Jura. Beautifully situated and you can take a nice walk around it (easy).

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MikE

July 21, 2024

The tour of the lakes is not of much interest, mainly being wide paths, without much relief, and with no view worthy of the name, including on the lakes (which we see very little, except on the eastern part, which is a shame). The western part is even difficult (we follow the road for 2km...). In short, a walk to forget, except perhaps for a running outing, or a detour via the Eagle peak.

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Details

Informations

Elevation 780 m

Weather

Today

Tuesday 28 October

10°C

5°C

100 %

If you start your activity now...

Max wind speed: 13.0 km/h

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Location: La Chaux-Du-Dombief, Saint-Claude, Bourgogne-Franche-Comté, France

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Lac d'Ilay

1. Pic de l'Aigle and belvédère des Quatre Lacs — loop in the parc naturel régional du Haut-Jura

2. Lac du Petit Maclu – Lac du Grand Maclu loop from Le Frasnois

3. Bélvédère des Trois Lacs – Pic de l'Aigle loop from Le Frasnois

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