4.4
(109)
494
hikers
31
hikes
Hiking around Caulnes offers diverse landscapes, characterized by its river valleys and the presence of the Rophemel Reservoir. The region features a mix of open countryside and wooded areas, providing varied scenery for outdoor activities. Elevation changes are generally moderate, making many routes accessible for different fitness levels. These trails often follow natural water features and rural paths.
Last updated: June 20, 2026
4.6
(29)
83
hikers
10.5km
02:50
130m
130m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.6
(25)
77
hikers
10.4km
02:47
120m
120m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.6
(5)
19
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.5
(6)
41
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.4
(5)
10
hikers
7.89km
02:08
100m
100m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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megalith which dominates the countryside. excellent downhill single suitable for gravel
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Opposite the standing stone, large field of aligned stones. Be careful in rainy weather, delicate surroundings of the water reservoir
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The Lampouy alignments are a set of five megalithic alignments located in the commune of Médréac
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The menhir is made of quartzite. Its height is 4.28 m, width 2.20 m and thickness 1.18 m. Its elongated and pointed shape would have earned it its name of Pierre Longue. Toppled in 1963, the menhir was erected in 1979. (Wikipedia)
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Very pretty historic building.
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Made of stone, with pictures, for orientation and with information
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The path has something mystical quiet, shady, winding.
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There are over 25 hiking routes around Caulnes, offering a variety of experiences. These include easy strolls, moderate loops, and some more challenging long-distance options.
Yes, Caulnes offers several easy trails. For instance, the Rophemel Reservoir – Menhir de la Pierre Longue loop from Les mégalithes de Lampouy is an easy 6.2 km route that takes about 1 hour 41 minutes, perfect for a relaxed outing. In total, there are 9 easy routes available.
Hiking around Caulnes features diverse landscapes, including picturesque river valleys, the expansive Rophemel Reservoir, and a mix of open countryside and wooded areas. Many trails follow natural water features and rural paths, offering varied scenery.
Yes, many of the trails around Caulnes are circular, allowing you to start and end at the same point. A popular example is La retenue de Rophemel — loop from Guitté, which circles the Rophemel Reservoir.
Hikers can explore several interesting points. The Rophemel Reservoir is a central feature, and you might encounter the ancient Menhir de la Pierre Longue or the Megalithic Alignments of Lampouy. There's also the serene Etang de Bétineuc and the charming Néal Waterfall and View of the Pond.
Yes, for those seeking a greater challenge, there are 4 difficult routes around Caulnes. One such route is the Rophemel Reservoir – Château de Beaumont loop from Saint-Maden, which spans nearly 29.5 km and involves significant elevation changes.
The trails in Caulnes are highly regarded by the komoot community, with an average rating of 4.3 stars from nearly 100 reviews. Hikers often praise the varied scenery, the peaceful atmosphere along the river valleys and reservoir, and the well-maintained rural paths.
Yes, some routes incorporate historical elements. For example, the Château de Beaumont – Rophemel Reservoir loop from Guenroc leads past the notable Château de Beaumont, offering a glimpse into the region's heritage.
Absolutely. The region is characterized by its river valleys and reservoirs. You can find beautiful water views along the La Rance and La Roche Longue – loop, which explores the area around the La Rance river. Additionally, the Néal Waterfall and View of the Pond is a specific highlight to look out for.
Hike durations vary significantly depending on the route's length and difficulty. Easy trails can take less than two hours, while moderate routes like the La retenue de Rophemel — loop from Guitté typically take around 2 hours 50 minutes. More challenging, longer routes can extend to over 7 hours.
While specific parking locations are often detailed on individual route pages, the rural nature of Caulnes generally provides accessible parking near trailheads in villages or designated areas, especially for popular routes around the Rophemel Reservoir.


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