Lac de Coiselet is a man-made reservoir situated on the border of the Ain and Jura departments in France. This region is characterized by its dramatic cliffs, lush forests, and the confluence of the Bienne and Ain rivers, creating a diverse landscape for outdoor activities. The terrain offers varied opportunities for several sports like hiking, touring cycling, mountain biking, road cycling, and more.
The Lac de Coiselet region provides a range of outdoor…
94
Routes
4.4
(243)
Average rating
1681
People visited

4.8
(31)
142
hikers
7.36km
02:16
190m
190m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

4.4
(7)
28
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

3.8
(35)
124
hikers
3.90km
01:16
160m
160m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

4.7
(13)
92
hikers
9.54km
02:57
240m
240m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
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3
runners
8.61km
01:09
280m
280m
Moderate run. Good fitness required. Mostly accessible paths. Some sure footedness required.

14
runners
11.7km
01:41
500m
500m
Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

10
runners
3.90km
00:33
160m
160m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

10
runners
21.0km
02:12
210m
210m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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4.3
(6)
51
riders
18.3km
01:07
180m
180m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.8
(5)
42
riders
45.0km
03:11
770m
770m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4.0
(1)
19
riders
32.3km
02:17
640m
640m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

3.5
(4)
15
riders
18.3km
01:10
230m
230m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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5.0
(1)
32
riders
18.4km
00:47
160m
160m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

28
riders
39.8km
02:03
640m
640m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

25
riders
28.0km
01:32
590m
590m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

25
riders
171km
08:49
2,920m
2,920m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
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4.7
(3)
24
riders
33.1km
01:56
330m
330m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

4.8
(5)
28
riders
53.4km
04:40
1,090m
1,100m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

4.0
(1)
17
riders
23.9km
01:30
340m
340m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

5.0
(1)
14
riders
27.4km
02:24
580m
580m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Lac de Coiselet offers a range of outdoor activities including hiking, touring cycling, mountain biking, road cycling, jogging, and gravel biking. The region features over 28 routes across these sports. Unsupervised swimming is also permitted at Chancia Beach.
Popular hiking routes include the "Molard de Netru and the heights of Chancia" loop, which is 7.6 miles (12.2 km) long. The "Oliferne Castle Ruins – Oliferne Peak" loop, at 5.5 miles (8.8 km), offers panoramic views. For more options, consult the Hiking around Lac de Coiselet guide.
Yes, easy hiking options are available, such as the "Plage de Chancia" loop, which is 2.4 miles (3.9 km) long and leads to sandy beaches. The Easy hikes around Lac de Coiselet guide provides additional routes suitable for beginners.
The region offers routes suitable for families. The Family-friendly hikes around Lac de Coiselet guide lists specific trails designed for family outings. These routes often feature easier terrain and shorter distances.
Lac de Coiselet provides routes for touring cycling, mountain biking, and road cycling. A notable route is the "Loop 16: Tour of the lake of Coiselet," an easy 18.9 miles (30.45 km) touring cycling route starting from Thoirette-Coisia. More options can be found in the Cycling around Lac de Coiselet guide.
Yes, Lac de Coiselet offers mountain biking trails. The broader Jura Mountains region provides over 1,200 miles (2,000 km) of marked trails, including technical options. For specific routes, consult the MTB Trails around Lac de Coiselet guide.
Key natural features include the Pic d'Oliferne, rising to 2,648 feet (807m), and the Mont Molard de Nétru and Chancia Cliffs. The lake is also known for the confluence of the Bienne and Ain rivers and the sandy Chancia Beach. These elements contribute to the region's diverse landscape.
Lac de Coiselet is a popular destination, with more than 19,000 visitors having shared their experiences on komoot. The 28 routes in the region have an average rating of 4.38 out of 5 stars. This indicates a high level of satisfaction among outdoor enthusiasts.
Komoot offers several guides for Lac de Coiselet, including Hiking around Lac de Coiselet, Family-friendly hikes around Lac de Coiselet, and Cycling around Lac de Coiselet. Guides for easy hikes, MTB trails, road cycling, and running are also available. These resources provide detailed information for planning activities.
Unsupervised swimming is permitted at Chancia Beach on Lac de Coiselet. This sandy beach provides a tranquil spot for relaxation and water activities. Other water sports like canoeing and paddling are also possible on the lake.
Official information for the Lac de Coiselet area can be obtained from the Haut-Bugey Tourisme office. Their website is a primary source for details regarding the lake and surrounding attractions. The office can be reached by phone at +33 (0)4 74 12 11 57.
Yes, the region features historical elements. The Pic d'Oliferne is home to the ruins of an 18th-century castle. Additionally, 140-million-year-old dinosaur footprints were discovered near Coisia village, offering a glimpse into ancient history.

