4.7
(90)
422
hikers
43
hikes
Hiking around Rostrenen offers diverse landscapes, characterized by rolling countryside, historic waterways, and numerous lakes. The region features the Nantes-Brest Canal, including the notable Glomel Cut, and various hills like Miniou hill. Well-maintained trails traverse forests, moors, and past chapels, providing varied terrain for outdoor activities.
Last updated: May 12, 2026
4.7
(3)
12
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(3)
10
hikers
11.5km
03:07
160m
160m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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3.0
(1)
5
hikers
9.54km
02:33
110m
110m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
4
hikers
14.2km
03:45
130m
130m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
3.0
(2)
7
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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This is one of the very few straight sections of the canal.
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Here the canal meanders through the landscape.
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A welcome breath of fresh air
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Mellionnec, a municipality which is part of the Villages of Europe network, shines through art and cinema, particularly during the Documentary Film Meetings in June. This village, focused on preserving the environment, with a spirit of solidarity and having a very dynamic associative fabric, invites you to disconnect and reconnect with nature and the locals.
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At an altitude of 184 m, the Glomel trench is the highest point of the Nantes-Brest canal and the watershed between the Blavet and Aulne basins. The canal project and its passage through the center of Brittany dates back to Vauban, the decision and the route to Napoleon. The impressive trench allows the Aulne and Blavet watersheds to communicate via the canal. The Grande Trenche of the Canal from Nantes to Brest was dug in the 19th century by deserters from the army of Louis XVIII. The 4000 convicts of Glomel had to move as much earth and rock as was necessary for the construction of a great pyramid in Egypt. It took 9 years to create this trench, more than 3 kilometers long, 100 meters wide and 23 meters deep.
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The dams for the Canal de Nantes à Brest create a lake from the waters of a little stream, the bike trail passes on the back of the levy
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This passage is the highest point of the canal. It was necessary to dig three million cubic meters of earth and rock to make the canal pass: as much as to build the largest pyramid in Egypt! The work was carried out in the 19th century by deserters imprisoned and sentenced to forced labor. Many did not survive the unimaginable working and hygienic conditions. A book “Les Bagnards du canal de Nantes à Brest” traces the little-known history of the builders of the canal from Nantes to Brest.
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There are over 30 hiking trails around Rostrenen, catering to various skill levels. The majority are moderate, with 19 moderate routes, 14 easy routes, and 1 difficult route available for exploration.
Hikes around Rostrenen feature diverse terrain, including rolling countryside, forests, and moors. Many routes follow the historic Nantes-Brest Canal and greenways, offering relatively flat sections, while others ascend gentle hills like Miniou hill, providing varied elevation changes.
Yes, Rostrenen offers several family-friendly hiking options, particularly along the greenways and around the local lakes. These paths are generally well-maintained and provide easier terrain suitable for all ages. The lake at Glomel, for instance, has a small sandy beach and a children's play area, making it a great spot for a family outing.
Most hiking trails in the Rostrenen area are dog-friendly, but it's always recommended to keep your dog on a leash, especially in nature reserves or agricultural areas. The greenways and paths along the Nantes-Brest Canal are generally suitable for walks with your canine companion.
Many trails incorporate historical and natural points of interest. You can explore the monumental The Glomel Cut, a significant engineering feat on the Nantes-Brest Canal, or visit the Locuon Chapel and Fountain and the Roman Bridge on routes like the Locuon Chapel and Fountain – Roman Bridge loop from Kerguedalen. The area also features several picturesque lakes, including Kerdiston lake.
Yes, many of the popular hiking routes around Rostrenen are circular, allowing you to start and end at the same point. Examples include the Kerdiston lake – The Glomel Cut loop from Glomel and the Roman Bridge loop from Mellionnec, which offer convenient exploration of the region's highlights.
Rostrenen is suitable for hiking throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant scenery with blooming flora or changing leaves. Summer is also popular, especially around the lakes, though some paths may be busier. The region's 'Green Station' status indicates its commitment to welcoming visitors year-round.
The area is highly rated by the komoot community, with an average score of 4.8 stars from over 70 reviews. Hikers often praise the diverse landscapes, the historical significance of sites like the Glomel Cut, and the well-maintained trails that cater to various abilities. The blend of canal paths, forests, and lakes makes for a rewarding experience.
Yes, Rostrenen offers 14 easy hiking routes perfect for a relaxed stroll. Many of these can be found along the Nantes-Brest Canal or the greenway network (Voie Verte V6), which are generally flat and well-suited for leisurely walks through the countryside.
While specific parking details vary by trailhead, many popular starting points for hikes around Rostrenen, especially in villages like Glomel or Kerguedalen, offer designated parking areas. The greenway network also often has accessible parking points. It's advisable to check local signage upon arrival.
Although Rostrenen is an inland town, its central location means you are less than an hour's drive from Brittany's famous coast. This provides easy access to the extensive GR34, also known as the 'Customs Officers' Path,' which offers dramatic views of the rugged coastline.
Absolutely. The Nantes-Brest Canal is a central feature of hiking around Rostrenen. Routes like the Kerdiston lake – The Glomel Cut loop from Glomel directly incorporate sections of the canal, including the notable Glomel Cut, offering picturesque paths along the waterway.


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