4.8
(50)
2,752
runners
131
runs
Jogging around Lac du Grand Maclu offers access to a network of routes within France's Jura region, characterized by its glacial lakes, forests, and panoramic viewpoints. The area is part of the "Four Lakes" site, featuring Lac du Grand Maclu, Lac du Petit Maclu, Lac d'Ilay, and Lac de Narlay, which are often interconnected by trails. The landscape includes varied terrain from lakeside paths to forested sections and elevated viewpoints, providing diverse running experiences.
Last updated: July 6, 2026
5.0
(1)
103
runners
12.0km
01:22
160m
160m
Hard run. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
113
runners
25.3km
03:12
610m
610m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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4.3
(3)
82
runners
3.94km
00:26
60m
60m
Easy run. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
70
runners
8.70km
00:57
60m
60m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
75
runners
13.5km
01:45
340m
340m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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The smaller of the two Maclu Lakes, with an easy hiking trail along its shore.
5
0
Small, rocky stretch of beach that you can climb down to, as well as good views of Lac Le Grand Maclu.
5
0
Water access with beautiful views of Lac Le Grand Maclu.
4
0
Beautiful view through a clearing onto Lac Le Grand Maclu.
5
0
View of Lac du Narlay from the edge of the forest.
6
0
Beautiful view of Lac de Narlay from the hiking trail.
6
0
A waterfall with a larger pool and a smaller cascade in a beautiful setting. In front of it is a small stone lynx statue.
6
0
Waterfall at the ruins of a former mill.
7
0
There are over 140 running routes in the Lac du Grand Maclu area, catering to various fitness levels. You'll find a good mix of easy, moderate, and difficult trails to explore.
Yes, the region offers several easy running routes. A good option for a comfortable jog is the Around Lake Narlay – Lake Narlay Loop loop from Le Frasnois, which is about 2.4 miles (3.9 km) and takes around 26 minutes to complete, winding through forested areas and along the lake shore.
Absolutely. For a more challenging run with significant elevation gain, consider the Four Lakes Viewpoint – Three Lakes Viewpoint loop from Le Frasnois. This difficult 15.8-mile (25.4 km) path offers panoramic views over the surrounding lakes and valleys.
The Lac du Grand Maclu area, part of the 'Four Lakes' site, is rich in natural beauty. You'll encounter stunning glacial lakes, dense forests, and meadows. For breathtaking panoramic views, routes can incorporate viewpoints like the Pic de l'Aigle and the Belvédère des Quatre Lacs, which offer vistas over the lakes, the Hérisson Valley, and even Mont Blanc on clear days.
Yes, the region is close to the famous Hérisson waterfalls. You can find routes that incorporate these natural wonders, such as the Saut de la Forge – Fan Waterfall loop from La Chaux-du-Dombief, which is a difficult 13.5 km (8.4 miles) trail featuring beautiful cascades.
Many trails in the Jura region are dog-friendly, but it's always recommended to keep your dog on a leash, especially in protected areas like the Four Lakes site, which has specific wildlife tranquility zones. This helps protect the local fauna and ensures a pleasant experience for all visitors.
The running routes in Lac du Grand Maclu are highly rated by the komoot community, with an average score of 4.8 stars from over 40 reviews. Runners often praise the diverse terrain, from serene lakeside paths to challenging elevated viewpoints, and the stunning natural beauty of the glacial lakes and forests.
Yes, many of the routes around Lac du Grand Maclu are circular, allowing you to start and end at the same point. For example, the Petit Maclu Lake – Lake Ilay loop from Le Frasnois offers a continuous lakeside experience.
Parking is generally available at common starting points for trails around the lakes and villages like Le Frasnois. It's advisable to check specific route details for recommended parking areas, especially during peak seasons.
The region is beautiful year-round, but spring and autumn offer pleasant temperatures and vibrant scenery, making them ideal for running. Summer can be warm, but lakeside trails provide cooler options. Winter running is possible, but conditions may vary, with some paths potentially being icy or snowy.
While popular routes can see more visitors, exploring trails further from the main viewpoints or during off-peak hours (early mornings or late afternoons) can offer a more serene experience. The extensive network of paths means you can often find quieter sections, especially on longer routes that venture deeper into the forests or connect multiple lakes.
Public transport options to the immediate vicinity of Lac du Grand Maclu can be limited. It's generally easier to access the trailheads by car. However, some regional bus services might connect larger towns in the Jura to villages near the lakes, requiring a short walk or taxi ride to the starting points.


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