4.4
(301)
1,423
hikers
64
hikes
Hiking around Servin, France, offers a diverse landscape characterized by river valleys, natural springs, and rolling hills. The region features a mix of open terrain and forested areas, providing varied scenery for outdoor activities. Elevation changes range from gentle ascents to more challenging climbs, suitable for different fitness levels. The area is known for its natural water features and historical landmarks, which are often incorporated into the hiking trails.
Last updated: June 22, 2026
2.9
(15)
31
hikers
7.61km
02:21
270m
270m
Hike the moderate 4.7-mile Val de Cusance Loop to explore the Cusancin valley, discover the Source Bleue, and enjoy panoramic views.
4.5
(14)
87
hikers
19.4km
05:53
640m
630m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.

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3.7
(3)
15
hikers
4.27km
01:18
130m
130m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.0
(6)
18
hikers
2.22km
00:37
50m
50m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.0
(3)
14
hikers
5.21km
01:39
200m
200m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Please note, this hike was done in May 2025, and the very last section was inaccessible. We were unable to reach the source of the Cusancin River; fallen trees and overgrown vegetation made the path impossible to find. We had to turn around and return to the starting point by road (barely a hundred meters of asphalt).
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Built on the foundations of a 12th century feudal castle, the chapel dominates the hamlet of Val-de-Cusance. It was built in 1880 and bears the name of Saint-Ermenfroi, who had built an abbey intended to accommodate the sick and foreigners in the 7th century. The chapel is the ideal place to enjoy a beautiful panorama of the valley, with greenery as far as the eye can see.
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The green spring or the Cuse is located on the left side of the river at approximately the same height as the blue spring. This is the true source of Cusancin. The upper gallery of the cave was walled with dry stones.
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The blue spring is a Vauclusian spring which emerges in an oval basin. Its depth is nine meters. Divers explored the submerged gallery over a length of 220 meters before stumbling upon a narrowing which was not crossed. The gallery is made up of two siphons. The turquoise blue waters give it its name.
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It is one of the two sources that feed the Cusancin, a river also known as “the Cuse”. It is greener than the blue of the Cove which is called the Blue Source. This is on the other side of the road. The Cuse and the Anse join and lend their name to the neighboring village: Cusance.
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As the name suggests, this water is crystal clear sea blue. Is it worth visiting and maybe taking a dip?
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Servin offers a wide variety of hiking experiences, with over 65 routes documented on komoot. These trails range from easy strolls to more challenging full-day hikes, exploring the region's river valleys, natural springs, and rolling hills.
Yes, Servin has numerous easy trails perfect for beginners or families. For instance, the The Blue Spring – Saint-Erminfroid Chapel loop from Cusance is an easy 2.3 km (1.4 miles) path that takes less than an hour, featuring natural springs. Another accessible option is the Cusancin spring – Saint-Erminfroid Chapel loop from Cusance, an easy 4.3 km (2.7 miles) route.
Many of the trails in Servin are designed as circular routes, allowing you to start and end in the same location. A popular moderate option is the Val de Cusance Loop, which covers 7.6 km (4.7 miles) through the scenic Cusance valley. For a longer, more challenging loop, consider the Saint-Erminfroid Chapel – The Blue Spring loop from Guillon-les-Bains.
Servin's landscape is characterized by its abundant natural water features, including several natural springs and river valleys. You'll also encounter rolling hills, a mix of open terrain, and forested areas. Many trails, like The Green Spring – Croix de Saint Erminfroi loop from Cusance, highlight these natural springs.
While specific named viewpoints aren't detailed for every route, the region's rolling hills and varied terrain often provide scenic vistas. The The Grange-Ravey cliffs offer dramatic natural scenery, and the Rochers de Sous-Buen are another notable natural landmark that can be explored.
The diverse landscape of Servin, with its river valleys and forested areas, makes it enjoyable for hiking across multiple seasons. Spring and autumn offer pleasant temperatures and vibrant scenery, while summer is ideal for exploring the natural springs. Winter hikes are also possible, though conditions may vary.
Generally, hiking trails in France, including those around Servin, are dog-friendly, especially if your dog is kept on a leash. It's always recommended to check specific trail regulations or local signage, particularly in nature reserves or protected areas, to ensure dogs are permitted.
Servin's hiking trails often incorporate historical landmarks. The Saint-Erminfroid Chapel – The Blue Spring loop from Guillon-les-Bains, for example, passes by a historic chapel. Additionally, the wider region features attractions like the Boucle du Doubs at Baume-les-Dames, offering cultural and natural points of interest.
The hiking routes in Servin are highly regarded by the komoot community, holding an average rating of 4.4 stars from over 250 reviews. Hikers often praise the varied terrain, the beauty of the natural springs, and the well-maintained paths that lead through both open and forested landscapes.
While specific parking details for every trailhead are not listed, most popular hiking areas in France, especially those near villages like Servin, typically offer designated parking spaces. It's advisable to check local maps or komoot tour details for specific starting points to find the most convenient parking options.
Yes, Servin offers several challenging routes for experienced hikers. The Saint-Erminfroid Chapel – The Blue Spring loop from Guillon-les-Bains is a difficult 19.5 km (12.1 miles) path with significant elevation gain, providing a demanding and rewarding experience.


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