4.8
(5)
904
runners
125
runs
Jogging routes around Saint-Hernin are set amidst the diverse landscapes of the Black Mountains (Menez Du) and the Nantes-Brest Canal. The region features a mix of dark forests, wild moors, and peat bogs in the higher areas, alongside verdant fields in the valleys. Green trails and sunken paths provide varied terrain for running, with the highest point, Ty Coz, reaching 308 meters. The Nantes-Brest Canal, located near the town center, offers peaceful, tree-lined towpaths for running.
Last updated: June 21, 2026
20
runners
18.5km
02:03
170m
170m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
25
runners
10.3km
01:08
70m
70m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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11
runners
19.1km
02:12
140m
140m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
runners
14.7km
01:36
140m
140m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
runners
9.67km
01:04
80m
80m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Small bridge whose arc forms a semicircle, and whose reflection perfectly completes the circle. A beautiful shot to take along the Vélodyssée greenway.
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Saint-Hernin offers a wide selection of over 100 running routes, catering to various preferences and fitness levels. You'll find everything from gentle paths to more challenging trails through the Black Mountains.
Yes, Saint-Hernin has several easy jogging paths, with 5 routes specifically categorized as easy. These are perfect for beginners or those looking for a relaxed run. Many of the routes along the Nantes-Brest Canal towpaths also offer a relatively flat and accessible experience.
The terrain in Saint-Hernin is quite varied. You can expect a mix of dark forests, wild moors, and peat bogs in the higher elevations of the Black Mountains, transitioning to verdant fields and traditional embankments in the lower areas. The Nantes-Brest Canal offers peaceful, flat towpaths, providing a contrast to the more undulating mountain trails.
Absolutely. Many of the running routes in Saint-Hernin are circular, allowing you to start and finish at the same point. For example, the Étang de Tronjoly loop from Guernéac'h is a popular moderate 10.9 km circular route, and the Manoir du Ster loop from Saint-Hernin offers another moderate 10.3 km circular option.
The running trails in Saint-Hernin are highly regarded by the komoot community, with an impressive average rating of 4.7 out of 5 stars from 6 reviews. Over 800 runners have explored the area, often praising the diverse landscapes, from the tranquil canal paths to the scenic Black Mountains.
While specific dog-friendly designations for each route are not always listed, generally, the natural trails and towpaths in the Saint-Hernin region are suitable for dogs, especially if kept on a leash. It's always a good idea to check local signage for any specific restrictions, particularly in nature reserves or protected areas.
Yes, the routes often pass by interesting natural and historical points. You might encounter parts of the Nantes-Brest Canal, such as the Kerhun Lock No. 191 or the Stone Arch Bridge. The Black Mountains themselves offer preserved panoramas, and historical sites like the Saint-Sauveur chapel or old slate quarries can be found along routes like the Circuit des Ardoisières.
Saint-Hernin offers beautiful jogging conditions throughout much of the year. Spring and autumn provide pleasant temperatures and vibrant scenery, with lush greenery or rich autumnal colors. Summer is also great, especially on shaded forest paths or along the canal. Even winter can be enjoyable, with the landscape taking on a different, often serene, beauty, though some higher trails might be more challenging.
Yes, for those seeking a greater challenge, Saint-Hernin offers several difficult routes. The Toullaeron Pass – Roc de Toulaëron loop from Guernéac'h is a demanding 33.0 km trail through the Black Mountains, typically taking nearly 4 hours to complete, with significant elevation changes.
The Nantes-Brest Canal towpaths are particularly well-suited for family outings, offering flat, safe, and scenic routes away from traffic. While specific 'family-friendly' jogging routes are not explicitly categorized, many of the easier paths and sections of longer routes can be enjoyed by families looking for a gentle run or walk together.
Parking is generally available in and around Saint-Hernin, particularly near trailheads or village centers. For routes along the Nantes-Brest Canal, you can often find parking spots in nearby towns or designated areas along the canal. For routes venturing into the Black Mountains, look for parking near starting points in villages like Guernéac'h.


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