Lac de Sylans is a region in the Ain department of France, characterized by its distinctive lake, formed by a historic landslide. The lake is situated in a natural cross valley, offering a preserved environment for outdoor pursuits. Its shores and surrounding areas provide varied terrain suitable for several sports like hiking, road cycling, jogging, touring cycling, and more.
Lac de Sylans offers numerous routes for outdoor activities, with more than 28,000 visitors…
93
Routes
4.4
(234)
Average rating
2400
People visited

4.3
(39)
309
hikers
9.85km
03:52
440m
440m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

4.8
(21)
165
hikers
14.7km
05:06
550m
550m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

4.6
(49)
388
hikers
8.22km
02:11
80m
80m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

4.5
(13)
120
hikers
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
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152
runners
13.6km
01:52
620m
620m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

108
runners
28.4km
04:17
1,240m
1,240m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

28
runners
15.9km
01:41
140m
140m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

22
runners
38.2km
05:09
1,110m
1,110m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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3.5
(4)
62
riders
50.5km
02:34
840m
840m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

5.0
(5)
32
riders
52.4km
02:37
850m
840m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

18
riders
106km
05:47
2,100m
2,100m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

5.0
(2)
22
riders
7.70km
00:21
80m
70m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
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5.0
(1)
20
riders
60.1km
03:58
800m
800m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(1)
12
riders
56.6km
04:04
1,180m
1,180m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.6
(8)
14
riders
27.0km
01:36
140m
150m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

13
riders
33.6km
02:56
660m
650m
Hard bike ride. Very good fitness required. You may need to push your bike for some segments of this route.
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5.0
(2)
10
riders
24.1km
02:06
480m
480m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

5.0
(1)
13
riders
44.9km
03:03
700m
700m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

1
riders
28.2km
02:05
570m
570m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

3
riders
31.6km
02:25
650m
650m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
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5.0
(1)
7
riders
37.2km
02:36
620m
620m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

5.0
(1)
10
riders
27.0km
02:38
540m
540m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

4.0
(1)
9
riders
12.8km
01:25
370m
370m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

15.9km
02:05
700m
700m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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Lac de Sylans offers various outdoor activities including Hiking, Road cycling, Jogging, Touring cycling, Mountain biking, and Gravel biking. The region has received an average rating of 4.41 stars from more than 28,000 visitors on komoot.
Lac de Sylans is known for its exceptionally pure water and its origin as an "accidental" lake formed by a landslide. It is also notable for the ruins of old ice factories on its shores, which operated until the early 20th century. The lake has been a protected natural site since 1909.
Yes, Lac de Sylans offers numerous hiking trails exploring its preserved banks and surrounding natural areas. A general guide for hiking in the area is available: Hiking around Lac de Sylans.
Lac de Sylans provides options for family-friendly hikes suitable for various skill levels. Specific routes and information can be found in the guide: Family-friendly hikes around Lac de Sylans.
The region offers diverse cycling options, including road cycling and touring cycling. Guides are available for Road Cycling Routes around Lac de Sylans and Cycling around Lac de Sylans.
Yes, mountain biking is an available activity in the Lac de Sylans region. Users can explore various routes and find suitable trails through the guide: MTB Trails around Lac de Sylans.
The flat terrain along the lake's banks provides an ideal setting for jogging. Specific running paths are detailed in the guide: Running Trails around Lac de Sylans.
Lac de Sylans is a popular destination on komoot, with more than 28,000 visitors having shared their experiences. The average rating for routes in the region is 4.41 out of 5 stars.
Komoot offers several guides for Lac de Sylans, covering various activities. These include guides for hiking, road cycling, running, mountain biking, and gravel biking, as well as specific guides for family-friendly or traffic-free routes.
Swimming is not permitted in Lac de Sylans. The lake is primarily known for its preserved natural environment and its historical significance.
Lac de Sylans is characterized by its exceptionally pure water. This purity is attributed to its low mineral content and natural filtration through large rocks and sand, making the water appear remarkably clear.
Yes, gravel biking is an option in the Lac de Sylans area. A dedicated guide provides information on suitable routes: Gravel biking around Lac de Sylans.
For additional information about Lac de Sylans and the surrounding area, contact the Haut-Bugey Tourist Office. Their phone number is +33 (0)4 74 12 11 57.

