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France
Bourgogne-Franche-Comté
Saint-Claude

Lac du Grand Maclu

The best walks and hikes around Lac du Grand Maclu

4.4

(4021)

30,678

hikers

243

hikes

Hiking trails around Lac du Grand Maclu traverse a diverse landscape characterized by glacial lakes, marshlands, and forested hills. The region, part of the Jura department in France, features four prominent lakes—Grand Maclu, Petit Maclu, Lac d'Ilay, and Lac de Narlay—set within shallow basins. Hikers can explore paths leading to panoramic viewpoints, such as Pic de l'Aigle, which offers extensive vistas over the surrounding valleys. The terrain includes varied vegetation, from wet tall-herb fringes to peat bogs, providing a range…

Last updated: May 12, 2026

4.8

(57)

281

hikers

#1.

Pic de l'Aigle – Three Lakes Viewpoint loop from La Chaux-du-Dombief

14.6km

04:17

320m

320m

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

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Moderate

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

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

Moderate

4.6

(240)

1,266

hikers

Hike the moderate 8.4-mile Pic de l'Aigle and Belvédère des Quatre Lacs loop in Haut-Jura, offering panoramic views and lake scenery.

Moderate

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

Moderate
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Tips from the Community

Thierry Martin-Braud
March 8, 2026, Lac de Narlay

🌿 Lake Narlay: Essential Information Location: Frasnois municipality, in the Lakes Region (Jura). Altitude: 748 m. Surface area: 41 ha. Depth: Up to 40 m, making it the deepest lake in the Jura. Origin: Glacial lake, likely formed by a rockfall. Environment: Meadows, forests, peat bogs, Natura 2000 and Ramsar sites. (Copilot)

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Kristian
September 1, 2025, Petit Lac Maclu

The smaller of the two Maclu Lakes, with an easy hiking trail along its shore.

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Kristian
September 1, 2025, Lac du Grand Maclu

A gravel, easy-to-walk hiking trail runs along the lakeshore, offering repeated, beautiful views of Lac Le Grand Maclu.

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Kristian
September 1, 2025, Lac du Grand Maclu

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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Beautiful view through a clearing onto Lac Le Grand Maclu.

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Kristian
August 19, 2025, Lac d'Ilay

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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Kristian
August 19, 2025, Lac de Narlay

Lac de Narlay is a lake in the Jura department of France, about 10 km south of Champagnole in Franche-Comté. It lies at an altitude of 748 m in the municipality of Le Frasnois and covers an area of approximately 0.4 km². The lake is 950 m long and 625 m wide. Its maximum depth is 40 m.

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Lacs de Maclu are two adjacent lakes in the western part of the French Jura, in the Jura department of Franche-Comté. They are located at an elevation of 779 m in a depression in the High Jura, in the region of the Five Lakes near Le Frasnois, about 12 km south of Champagnole. The Petit Maclu, located to the northeast, has an area of 5 hectares, a length of about 500 m, and a maximum width of about 120 m. Its greatest depth is 11 m. It lies entirely within the municipal territory of Le Frasnois.

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Frequently Asked Questions

How many hiking trails are there around Lac du Grand Maclu?

There are over 240 hiking trails around Lac du Grand Maclu, offering a wide range of options for different skill levels and preferences. You'll find everything from gentle lakeside strolls to more challenging ascents with significant elevation gain.

Are there easy hiking trails suitable for beginners or families?

Yes, the region offers many easy paths perfect for beginners and families. A great option is the Grand Maclu Lake – Little Maclu Lake loop from Le Frasnois, which is an easy 2.4-mile (3.8 km) trail. Many paths around the lakes have minimal elevation gain, making them accessible for all skill levels.

What kind of views can I expect on hikes around Lac du Grand Maclu?

Hikers can expect magnificent panoramic views, especially from elevated points. Pic de l'Aigle, at 993 meters, offers stunning vistas over the Hérisson Valley, the Grandvaux Valley, and even Mont Blanc on clear days. The 4 Lakes Panoramic Viewpoint also provides a 360° perspective of the Jura Mountains and the four glacial lakes.

Are there any trails that feature waterfalls?

Yes, the area is renowned for its impressive waterfalls. The famous Cascades du Hérisson comprise 31 waterfalls and 7 cascades along a picturesque path, offering a refreshing experience. Other notable waterfalls include Saut de la Forge and Fan Waterfall, which can be explored via various trails.

Are there circular hiking routes around the lakes?

Absolutely. The region is ideal for circular walks. You can enjoy loops like the Grand Maclu Lake – Little Maclu Lake loop. There's also an 11km trail that circles all four lakes, suitable for both walking and cycling, with picnic spots along the way.

What do other hikers enjoy most about hiking in Lac du Grand Maclu?

The area is highly rated by the komoot community, with an average score of 4.5 stars from over 4000 reviews. Hikers often praise the picturesque scenery, the diverse landscapes of glacial lakes and forests, and the well-maintained trails that cater to various fitness levels. The panoramic viewpoints are frequently highlighted as must-see attractions.

Can I bring my dog on the hiking trails?

While the region is a protected area, many trails are generally dog-friendly. However, it's always recommended to keep dogs on a leash to protect local wildlife and ensure the safety of other hikers, especially in areas with sensitive habitats like peat bogs. Please check specific trail regulations for any restrictions.

What is the best time of year to hike around Lac du Grand Maclu?

The autumn season is particularly recommended for hiking due to the beautiful reflections of fall colors on the lakes and surrounding forests. Spring and summer also offer pleasant conditions, with lush greenery and comfortable temperatures, though summer can be busier.

Are there any challenging hikes for experienced hikers?

Yes, for those seeking a greater challenge, options include longer routes that ascend to viewpoints or explore more rugged terrain. For example, the ascent to Pic de l'Aigle can be part of a 9km sporty loop, and there are longer waterfall trails like the Saut de la Forge – Fan Waterfall loop (23.0 km) that require very good fitness.

Are there any specific trails that offer great panoramic views?

For expansive views, consider the Three Lakes Viewpoint – Four Lakes Viewpoint loop from La Chaux-du-Dombief. This moderate trail connects two key viewpoints, offering broad vistas of the Jura Mountains and the surrounding valleys. The Pic de l'Aigle – Stone formation loop from Le Frasnois also provides excellent views towards Pic de l'Aigle itself.

Is swimming allowed in the lakes?

The four-lake area is a protected site, and swimming is generally prohibited in most of the lakes to preserve their natural state. However, swimming is tolerated in Lake Ilay. Always respect local regulations and signage regarding water activities.

Are there any less crowded hiking options?

While popular spots like the Cascades du Hérisson can attract crowds, exploring some of the longer or slightly more challenging routes, or visiting during off-peak seasons (spring or late autumn), can offer a more tranquil experience. Many of the 240+ trails provide opportunities for solitude away from the main tourist hubs.

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