5.0
(2)
9
hikers
3
hikes
Mountaineering around Lac de Narlay, situated in the Jura Mountains, offers routes through a landscape shaped by glacial activity. The region is characterized by its deep, triangular-shaped glacial lakes, dense forests, and limestone cliffs. While not a technical climbing destination, the area provides varied terrain for mountain hikes, including ascents to panoramic viewpoints. The unique natural features contribute to its designation as a protected Natura 2000 site.
Last updated: July 6, 2026
5
hikers
12.0km
03:42
350m
350m
Moderate mountaineering route. Good fitness required. Mostly accessible paths. Sure-footedness required.
5.0
(1)
2
hikers
9.89km
03:07
270m
270m
Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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5.0
(1)
2
hikers
8.37km
02:36
210m
210m
Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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A superb hike with beautiful views of the seven waterfalls. It's quite crowded, so for a quieter return, you can take the GR 559 forest path back, which doesn't follow the water but is also magnificent in autumn!
0
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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
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Waterfall at the ruins of a former mill.
7
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Larger waterfall Cascade Saut De La Forge with grotto and views directly onto the waterfall, as well as from above onto the water cascading down over smaller cascades.
7
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Beautiful view near a crossroads of a small waterfall with cascades.
7
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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.
7
0
View of the Cascade de L'Eventail. A small, rocky path leads directly to the waterfall.
7
0
Beautiful view of the central waterfall Cascade Du Hérisson with several cascades.
7
0
There are several mountaineering routes around Lac de Narlay, with komoot currently featuring 3 distinct tours. These routes offer a range of experiences through the region's glacial landscape, dense forests, and past limestone cliffs.
The mountaineering routes around Lac de Narlay cater to various skill levels. You'll find options ranging from moderate to difficult. For example, the Fan Waterfall – Le Grand Saut loop from La Chaux-du-Dombief is considered moderate, while the Le Grand Saut – Saut de la Forge loop from La Chaux-du-Dombief and the Le Grand Saut – Saut de la Forge loop from Bonlieu are rated as difficult.
Yes, all the featured mountaineering routes around Lac de Narlay are circular. This includes the popular Fan Waterfall – Le Grand Saut loop from La Chaux-du-Dombief, which offers waterfalls and varied forest paths, and the more challenging Le Grand Saut – Saut de la Forge loop from La Chaux-du-Dombief.
The region is rich in natural beauty. You can expect to see the deep, triangular-shaped Lac de Narlay itself, often called 'the black lake' due to its depth. The routes traverse dense forests, alpine meadows, and impressive limestone cliffs. Some trails, like the Fan Waterfall – Le Grand Saut loop, will lead you past beautiful waterfalls. The broader area also boasts panoramic viewpoints like Pic de l'Aigle and Belvédère des Quatre Lacs, offering stunning vistas over the Hérisson Valley and the other Jura lakes.
The best time for mountaineering around Lac de Narlay is generally from spring through autumn. During these seasons, the trails are clear, and the weather is more favorable for exploring the dense forests and enjoying the lake views. While the region is beautiful year-round, winter conditions can introduce snow and ice, requiring specialized gear and experience.
While the listed mountaineering routes include moderate and difficult options, the broader Lac de Narlay area offers extensive hiking trails suitable for families. The terrain around the lake shoreline is generally gentle, and many marked paths cater to all skill levels, making it possible to find suitable walks for families, even if not specifically 'mountaineering' in the technical sense.
The Jura Mountains region is generally welcoming to dogs on trails, but it's always recommended to check specific local regulations or signage at trailheads. Given the area's protected status as a Natura 2000 and Ramsar site, and the voluntary tranquility zone observed from April 15 to September 15, keeping dogs on a leash is advisable to protect local wildlife.
Specific parking information for each trailhead is usually available on the individual route pages. For example, routes like the Fan Waterfall – Le Grand Saut loop often start from villages like La Chaux-du-Dombief, where designated parking areas are typically found. It's best to consult the komoot tour details for precise starting points and parking suggestions.
The routes around Lac de Narlay are highly rated by the komoot community, with an average score of 5.0 stars. Mountaineers often praise the varied terrain, the stunning natural beauty of the glacial lakes and forests, and the rewarding views. The presence of features like waterfalls, as seen on the Fan Waterfall – Le Grand Saut loop, is also a highlight for many.
For mountaineering around Lac de Narlay, especially on moderate to difficult routes, sturdy hiking boots with good ankle support are essential. Depending on the season, layers of clothing are recommended, along with rain gear. A backpack with water, snacks, a map or GPS device (like komoot's app), and a first-aid kit are always wise. For winter conditions, additional gear like microspikes or snowshoes might be necessary.
Yes, swimming is generally permitted in Lac de Narlay, offering a refreshing option after a hike. However, visitors should be mindful of the voluntary tranquility zones observed from April 15 to September 15, which are in place to preserve local wildlife. Always check for local signage regarding swimming regulations.
While the immediate trailheads might be in more secluded natural areas, the villages surrounding Lac de Narlay, such as La Chaux-du-Dombief or Bonlieu (starting points for routes like the Le Grand Saut – Saut de la Forge loop from Bonlieu), often have local establishments where you can find refreshments or a meal after your mountaineering adventure.


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