4.3
(154)
4,594
runners
15
runs
Jogging routes around Sergy offer diverse terrain at the foot of the Jura Mountains in the Ain department of eastern France. The region features wide paths through fields and forests, with varied elevations ranging from 439 meters to 1,718 meters. Runners can experience landscapes including moors, wetlands, meadows, and woodlands, often with views of the Pays de Gex plain and distant Alps. This area provides a mix of gentle runs and challenging climbs.
Last updated: April 29, 2026
5.0
(1)
53
runners
4.99km
00:32
30m
30m
Easy run. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
12
runners
8.44km
00:54
100m
100m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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11
runners
9.88km
01:02
100m
100m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
runners
8.90km
01:01
180m
180m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
runners
26.7km
03:16
710m
710m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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First view of the plain, Geneva, the lake and Mont Blanc
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Go mountain biking around Crozet, where you will be rewarded with breathtaking panoramic views of Geneva and the Alps. As you ride, you will enjoy the mix of forest trails and open paths that offer great views of the surrounding landscape. Take time to admire the vast view that stretches from the city of Geneva to the majestic peaks of the Alps, passing by the serene waters of the lake.
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Very nice hike. Perfect with 2 children and a dog. However, there is no sign indicating that we are entering a nature reserve, just a sign when we leave.
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The National Nature Reserve of the Haute Chaîne du Jura is a nature reserve in the Auvergne-Rhône-Alpes region on the border with Switzerland. It overlooks Lake Geneva below. It has an area of more than 10,000 hectares and is the fourth largest in France.
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Starting point for the ascent to Reculet and/or Crêt de la Neige for motorized vehicles. The non-motorized and the courageous obviously leave from the village of Thoiry. In summer, the establishment sells drinks and pastries (when it is open).
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Hidden gem. Cave hidden if you don't know about it. Tip: there is a little one on the other side further down, where you can get to a small hall going to a narrow passage :)
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There are over 15 diverse running routes around Sergy, catering to various fitness levels. These include easy loops, moderate trails, and more challenging climbs through the Jura Mountains.
The terrain around Sergy is quite varied. You'll find wide paths through fields and forests, some even following ancient Roman roads. The region also features moors, wetlands, and meadows, especially within areas like the Parc des Bruyères. Elevations range significantly, offering both gentle runs and invigorating uphill challenges.
Yes, Sergy offers several easy routes perfect for beginners or those looking for a relaxed run. An excellent option is the Bois Janin loop from Gex, which is an easy 4.5 km trail. Another accessible choice is the Running loop from Gex, a 5 km route that takes about 32 minutes to complete.
For breathtaking views, consider routes that ascend into the Jura Mountains. From higher elevations, you can often enjoy panoramic vistas of the Pays de Gex plain, the distant Salève, and even the majestic Alps, including Mont Blanc and Lake Geneva. The View of the Mountain loop from Gex is a moderate 9.9 km trail known for its potential viewpoints.
Absolutely! The region boasts several natural highlights. You can explore the extensive Parc des Bruyères, an 80-hectare park with diverse environments including moors, wetlands, and forests, and two ponds where water birds can be observed. For impressive natural monuments, consider routes near Grand Crêt or Grand Montrond, both prominent Jura peaks offering exceptional views.
Yes, many of the running routes around Sergy are designed as circular loops, allowing you to start and finish at the same point. Examples include the Château Choully loop from Saint-Genis-Pouilly, a moderate 8.4 km path, and the Beautiful view – View of the Mountain loop from Gex, a moderate 8.9 km route.
The running routes in Sergy are highly rated by the komoot community, with an average score of 4.3 stars from over 140 reviews. Runners often praise the varied terrain, the stunning views of the Jura Mountains and distant Alps, and the well-maintained paths through forests and fields.
While specific dog-friendly designations aren't always noted, many natural trails through forests and fields in the Sergy region are suitable for running with dogs, provided they are kept under control. Always check local regulations, especially within protected areas like the Haute Chaîne du Jura Nature Reserve, where specific rules for dogs may apply.
Definitely. Sergy's location at the foot of the Jura Mountains means there are plenty of challenging options. The varied elevations, reaching up to 1,718 meters, provide invigorating uphill climbs and technical descents suitable for experienced trail runners. Routes in the higher parts of the Jura offer more difficult terrain and significant elevation changes.
The region around Sergy is enjoyable for jogging throughout much of the year. Spring and autumn offer pleasant temperatures and beautiful scenery with changing foliage. Summer is also popular, though it's advisable to run earlier in the morning or later in the evening to avoid the midday heat. Winter can offer unique experiences, especially on lower elevation trails, but higher mountain routes may require appropriate gear for snow and ice.
Yes, the region features several beautiful lakes and water bodies. Within the Parc des Bruyères, you'll find two ponds. Additionally, the broader area includes highlights such as Étang du Bois des Mouilles and Lac des Vernes, which can be incorporated into longer runs or visited separately.


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