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France
Bourgogne-Franche-Comté
Saint-Claude

Lac D'Ilay

The best hikes from bus stations around Lac D'Ilay

4.4

(3885)

30,083

hikers

14

hikes

Bus station hiking trails around Lac D'Ilay are situated in the Jura Mountains, an area defined by glacial lakes, imposing cliffs, and extensive forests. The region encompasses the "4 Lakes" area, featuring Lac d'Ilay, Lac de Narlay, Lac du Petit Maclu, and Lac du Grand Maclu, known for their distinct turquoise waters. Hikers can explore diverse landscapes, from accessible lakeside paths to routes ascending to viewpoints like Pic de l'Aigle, which provides panoramic vistas. The trails also navigate through ecologically…

Last updated: May 10, 2026

4.7

(3)

53

hikers

#1.

Pic de l'Aigle – The four lakes loop from La Chaux-du-Dombief

2.90km

00:50

80m

80m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Easy

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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

Moderate

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

Hard

5.0

(1)

10

hikers

Moderate hike. Great for any fitness level. Mostly accessible paths. Sure-footedness required.

Moderate
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Tips from the Community

Kristian
August 31, 2025, Château Garnier

Beautiful view near a crossroads of a small waterfall with cascades.

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7

0

Kristian
August 31, 2025, Le Gour Bleu

A beautifully situated small waterfall with a small pool. From the rocks in front of the waterfall, you can enjoy beautiful views of the idyllic natural setting.

Translated by Google

7

0

Path along the Le Hérisson stream with several smaller cascades.

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7

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Metal footbridge over the Le Hérisson stream with beautiful views of the water.

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7

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View of the Cascade de L'Eventail. A small, rocky path leads directly to the waterfall.

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7

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Beautiful view of the central waterfall Cascade Du Hérisson with several cascades.

Translated by Google

7

0

Good spot to start Pic de l'Aigle walk

1

0

Great view point of the Quatre lacs. Nice hike from Pic de l'Aigle or directly from the car park

0

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Frequently Asked Questions

How many bus-accessible hiking trails are there around Lac d'Ilay?

There are over a dozen hiking trails around Lac d'Ilay that are accessible from bus stations, offering a variety of distances and difficulties to explore the stunning Jura landscape.

Are there easy bus station hikes suitable for beginners or families?

Yes, there are several easy routes perfect for beginners or families. For instance, the Pic de l'Aigle – The four lakes loop from La Chaux-du-Dombief is an easy 2.9 km trail that offers beautiful views without significant elevation gain. The region's glacial lakes provide accessible lakeside scenery for gentle strolls.

Can I bring my dog on these bus-accessible trails?

Yes, dogs are generally welcome on the trails around Lac d'Ilay. However, it is crucial to keep them on a leash to protect the local wildlife and respect the tranquility zones, especially during animal breeding seasons. The area is a Natura 2000 and Ramsar site, highlighting its ecological importance.

Are there any trails that feature waterfalls?

Absolutely. The picturesque Rivière du Hérisson flows from Lac d'Ilay, and its waterfalls are a major attraction. You can experience them on routes like the Fan Waterfall – Le Grand Saut loop from Bonlieu, which is a more challenging hike but rewards you with stunning cascades.

What kind of views can I expect on these hikes?

The hikes offer diverse and breathtaking views. You'll encounter the striking turquoise waters of the glacial lakes, dramatic cliffs, and extensive forests. The Pic de l'Aigle, for example, provides panoramic 360-degree views over the Jura Mountains, the Hérisson Valley, and even Mont Blanc on a clear day. Routes like the Four Lakes Viewpoint – Stone formation loop from La Chaux-du-Dombief specifically highlight these scenic vistas.

Are there circular routes available from bus stops?

Yes, many of the bus-accessible trails are circular, allowing you to start and end at the same point. Examples include the Pic de l'Aigle – The four lakes loop from La Chaux-du-Dombief and the Belvédère de la Dame Blanche – White Lady viewpoint loop from Bonlieu, making logistics straightforward when relying on public transport.

What is the best time of year to hike around Lac d'Ilay?

The region is beautiful year-round, but spring and autumn offer particularly pleasant hiking conditions with vibrant foliage or blooming wildflowers. Summer is also popular, though trails can be busier. Always check local weather conditions before heading out.

What makes the landscape around Lac d'Ilay unique for hiking?

The Lac d'Ilay area is unique due to its stunning glacial landscapes, featuring a chain of four interconnected lakes with striking turquoise waters. The presence of dramatic cliffs, extensive forests, and delicate peat bogs creates a diverse and enchanting environment, recognized for its ecological importance as a Natura 2000 and Ramsar site.

What do other hikers enjoy the most about hiking in Lac d'Ilay?

The area is highly rated by the komoot community, with an average score of 4.5 stars from over 4,000 ratings. Reviewers often praise the stunning natural beauty, the variety of trails catering to different abilities, and the panoramic views, especially from viewpoints like Pic de l'Aigle.

Are there any moderate bus station hikes for those looking for a bit more challenge?

Certainly. Many routes fall into the moderate category, offering a good balance of distance and elevation. The Four Lakes Viewpoint – Stone formation loop from La Chaux-du-Dombief, at 11 km, provides a substantial hike with rewarding views. Another excellent option is the Altar stone – Lake Bonlieu loop from Bonlieu, which is around 9 km.

Can I swim in Lac d'Ilay or the other lakes after my hike?

To protect the fragile ecosystem and preserve the natural environment, swimming and boating are generally prohibited in Lac d'Ilay and the other three lakes. The focus in this pristine area is on hiking, mountain biking, and appreciating the natural beauty from the shore.

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