4.5
(91)
4,046
runners
228
runs
Jogging around Saffloz offers a diverse landscape characterized by its proximity to Lac de Chalain and surrounding natural features. The region features a mix of lakeside paths, forested sections, and areas with notable elevation changes, providing varied running experiences. Trails often lead to scenic viewpoints overlooking the lake and incorporate natural elements like waterfalls. This terrain provides options for both gentle runs and more challenging long-distance efforts.
Last updated: June 22, 2026
4.6
(8)
249
runners
13.6km
01:33
230m
230m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
105
runners
5.06km
00:33
30m
30m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
41
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
43
runners
48.2km
05:51
850m
850m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
41
runners
4.39km
00:29
70m
70m
Easy run. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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View of Lac de Chalain from a small hiking trail.
7
0
View of the Cascade de L'Eventail. A small, rocky path leads directly to the waterfall.
7
0
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.
5
0
Beautiful view of the lake, and afterward, we had a lovely swim in the lake. Nice bar with delicious ice cream.
0
0
Good shoes recommended; it's a climb
0
0
The decent from Bonlieu to the Cascades is steep, narrow and rocky - caution advised
2
0
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.
0
1
There are over 220 running routes around Saffloz, catering to various skill levels. You'll find a wide selection from easy loops to more challenging long-distance trails.
Yes, Saffloz offers several easy running routes perfect for beginners. For example, the Running loop from Fontenu is an easy 4.4 km (2.7 miles) path with minimal elevation gain, ideal for a gentle run.
For those seeking a challenge, Saffloz has difficult long-distance options. The Chalain Lake Viewpoint – Fan Waterfall loop from Songeson is a demanding 48.2 km (29.9 miles) trail that includes significant elevation changes and takes approximately 5 hours 52 minutes to complete.
Many running routes in Saffloz are circular, offering convenient starting and ending points. A popular moderate option is the Lake Chalain loop from Fontenu, which is 5.3 km (3.3 miles) and circles the beautiful Lac de Chalain.
The running trails in Saffloz are known for their diverse and picturesque scenery. You can expect stunning views of Lac de Chalain, forested sections, and natural elements like waterfalls. Routes often lead to scenic viewpoints overlooking the lake, such as those found on the Trail with a view of the lake – View of Lac de Chalain loop from Fontenu.
Most natural trails in the Saffloz region are generally dog-friendly, but it's always recommended to keep your dog on a leash, especially in areas with wildlife or near livestock. Please ensure you clean up after your pet to maintain the natural beauty of the area.
Saffloz is rich in natural beauty. Many running routes offer views of or pass by notable attractions. You can explore various lakes like Petit Maclu Lake or Lake Narlay, and discover impressive waterfalls such as the Fan Waterfall or Saut Girard Waterfall. The Three Lakes Viewpoint also offers panoramic vistas.
The best time to go running in Saffloz is typically during spring, summer, and early autumn. During these seasons, the weather is generally mild, and the natural landscapes around Lac de Chalain and the forests are at their most vibrant. Always check local weather conditions before heading out.
Running in Saffloz during winter is possible, but conditions can vary significantly. Trails may be icy or muddy, especially at higher elevations or after snowfall. It's advisable to wear appropriate winter running gear and check local conditions before planning a winter run.
The running routes in Saffloz are highly rated by the komoot community, with an average score of 4.5 stars from over 80 reviews. Runners frequently praise the beautiful lake views, varied terrain, and the opportunity to explore natural features like waterfalls. The diverse options for different ability levels are also a highlight.
While specific routes aren't designed around cafe stops, many trails pass through or near villages where you might find refreshment options. Komoot users often add highlights for cafes or shops they discover along their runs, so checking user-generated content on specific routes can be helpful.
Komoot provides route details and user reviews, which can offer insights into recent trail conditions. For real-time updates on weather or specific trail closures, it's best to consult local tourism offices or community forums for the Saffloz region.


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