3.9
(58)
1,932
riders
98
rides
No traffic road cycling routes around Le Sourn traverse a diverse landscape in Brittany, France, characterized by the Blavet River valley and proximity to the Nantes-Brest Canal. The region offers a network of greenways and dedicated paths, providing varied terrain for road cyclists. Elevations range from 46 to 184 meters, ensuring a mix of flat sections along waterways and gentle hills. This area is recognized for its cycling infrastructure, making it suitable for routes away from motorized traffic.
Last updated: May 22, 2026
36
riders
34.3km
01:28
180m
180m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
4.0
(2)
52
riders
58.7km
02:31
380m
380m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

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24
riders
42.9km
01:57
470m
470m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4.0
(1)
13
riders
44.9km
01:58
430m
430m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
3.0
(2)
13
riders
48.4km
02:14
440m
440m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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Popular around Le Sourn
Numerous cafes around the huge square/market area of Pontivy. Pick one and have a break The Cafe Central (I think was the name) was especially nice, but maybe there are others just as good if not better nearby!
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The chapel is nestled close to the rocks on the other side of the river. It can be reached via hiking trails on the other side.
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Fully paved, so no problems for a road bike.
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A little quiet moment before the Temple coast...
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Between “le Couedic”, “Parc Buisson”, “Lann Buhan”, “Parc Er Lannet” and “Keroret”, there are no less than five locks which follow one another on this part of the Nantes to Brest canal.
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This small village of barely 2,000 inhabitants neighbors the town of Pontivy. You find very beautiful chapels and churches within this town.
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This beautiful water town, famous for its Château des Rohans, is located in Argoat. That is to say in the very center of the Breton peninsula. It is a city which has preserved the Napoleonic memory of the great works carried out during the reign of the emperor. The Blavet is experiencing spectacular floods here which have left their mark on the inhabitants. The most recent ones date from January 1995 and February 2014.
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There are over 90 dedicated no-traffic road cycling routes around Le Sourn, offering a wide range of options for different skill levels and preferences. Most of these routes are considered moderate, with some easier and a few more challenging options available.
Le Sourn's location in the Blavet Valley and near the Nantes-Brest Canal means you can expect varied terrain. Many routes follow flat towpaths along the Blavet River or the canal, offering easy and scenic rides. However, the region also features a varied topography with elevations ranging from 46 to 184 meters, so you'll find routes with gentle climbs and descents, particularly as you move away from the waterways.
Yes, the region is well-suited for longer car-free rides. The Blavet towpath offers a substantial 62 km route from Hennebont to Pontivy, providing a flat and picturesque experience. Similarly, sections of the Nantes-Brest Canal path, though sometimes gravelly, are suitable for road bikes and offer extended tranquil cycling away from traffic. For a moderate loop, consider the Ecluse – Le Divit Lock loop from Pontivy, which covers nearly 59 km.
The flat and well-maintained towpaths along the Blavet River and the Nantes-Brest Canal are ideal for family cycling. These greenways are designed for non-motorized travel, ensuring a safe and pleasant experience away from cars. They offer easy gradients and beautiful scenery, perfect for cyclists of all ages.
Many routes will take you past historical and natural sights. You can cycle along the Canal de Nantes à Brest, enjoying its tranquil locks like the Guernal lock. The nearby town of Pontivy, just 3 km from Le Sourn, is home to the impressive Pontivy Castle. Other notable sites include the Saint-Nicodème Chapel and the Chapel of Our Lady of the Carmelites, which can be incorporated into longer rides.
Yes, many of the no-traffic routes around Le Sourn are designed as loops, allowing you to start and finish at the same point. Examples include the moderate Ville Pérot lock – Pontivy loop from Pontivy, which is about 34 km, or the longer Junction Basin of the Canals – Pontivy Castle loop from Pontivy Sud, spanning over 50 km.
The spring and autumn months generally offer the most pleasant conditions for road cycling in Le Sourn, with mild temperatures and beautiful scenery. Summer can also be excellent, though it can get warmer, especially in direct sunlight along the canal paths. Always check the local weather forecast before heading out.
Parking is generally available in and around Le Sourn, particularly in nearby towns like Pontivy, which serves as a common starting point for many routes along the Blavet River and Nantes-Brest Canal. Look for designated parking areas near canal access points or town centers.
The area is highly rated by the komoot community, with an average score of 4.0 stars from over 50 ratings. Reviewers often praise the tranquility of the car-free paths, the picturesque scenery along the waterways, and the variety of routes that cater to different fitness levels, making it an excellent destination for a peaceful road cycling experience.
While many routes are moderate, the varied topography of the region means you can find more challenging options with greater elevation gain. For example, the Junction Basin of the Canals – Pontivy loop from Le Sourn, starting directly from Le Sourn, features over 400 meters of elevation gain over its 40 km distance, offering a good workout away from traffic.
While specific public transport options for bikes directly to every trailhead might be limited, the nearby town of Pontivy is a regional hub. It's advisable to check local bus or train services for their bike carriage policies, as options can vary. Cycling directly from Le Sourn or Pontivy to the car-free paths is often the most straightforward approach.


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