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

Hiking

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

Hiking

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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Best Hikes to Lake Ilay

4.6

(225)

1,190

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

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

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Moderate

4.7

(88)

682

hikers

2. Petit Maclu Lake – Grand Maclu Lake loop from Le Frasnois

9.80km

02:37

110m

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

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Moderate

4.7

(103)

1,239

hikers

3. Cascades du Hérisson – Le Grand Saut loop from La Chaux-du-Dombief

13.5km

04:10

340m

Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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Hard

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Informations

Elevation 780 m

Weather

Most visited during

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

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Belvédère de l'Eventail

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Lake Ilay

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

2. Petit Maclu Lake – Grand Maclu Lake loop from Le Frasnois

3. Cascades du Hérisson – Le Grand Saut loop from La Chaux-du-Dombief

Other Popular Places to Check Out

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