4.6
(172)
1,214
hikers
24
hikes
Hiking around Guillac, located in Brittany, France, offers diverse landscapes for outdoor enthusiasts. The region is characterized by the Nantes-Brest Canal, which provides accessible and scenic paths along its former towpaths. Trails also traverse verdant forests, including areas within reach of the legendary Brocéliande Forest, and follow river valleys like the Oust. The terrain generally features gentle elevation changes, making it suitable for various hiking abilities.
Last updated: June 25, 2026
5.0
(5)
22
hikers
6.21km
01:35
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
5.0
(4)
38
hikers
8.61km
02:12
30m
30m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.7
(3)
8
hikers
11.8km
03:11
160m
160m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
2
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
8
hikers
6.15km
01:38
60m
60m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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Monolithic base with a profile composed of various moldings, inscription engraved on the front: "To Rouxel de Bréhand, his 4 companions shot here on October 11, 1799"; monolithic cross with a round section.
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Very beautiful castle on the canalized Oust
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Beautiful picturesque town with a spectacular castle and old half-timbered houses
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It looks beautiful when you come along the bike path along the canal.
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From this point, you have a superb view of the Josselin castle. There are opportunities for free and guided tours. The annual closure is from November 1 to April 8. The Castle dates from the beginning of the 11th century, when the nearby Viscount of Porhoët had a palisade built on this rocky promontory overlooking the Oust valley. In 1370, Olivier de Clisson, constable of France, had the fortress built.
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The Château de Josselin is a two-faced building whose architectural details tell a thousand-year-old story. Standing on a rocky outcrop, it overlooks the Oust valley. On the river side, an austere facade evokes the feudal struggles of the Middle Ages. On the courtyard side, a more refined sculpted granite facade offers a particularly well-preserved example of Breton architecture from the end of the 15th century and the beginning of the 16th century.
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Hiking around Guillac features diverse terrain, from exceptionally accessible and flat paths along the Nantes-Brest Canal to more undulating landscapes in river valleys like the Oust. You'll also find trails winding through verdant forests, including areas within reach of the legendary Brocéliande Forest. The region generally has gentle elevation changes, making it suitable for various abilities.
There are over 20 hiking trails around Guillac, offering a variety of experiences. These include 10 easy routes perfect for a relaxed stroll and 13 moderate paths for those seeking a bit more challenge.
Yes, Guillac is well-suited for family hikes, especially along the Nantes-Brest Canal. These former towpaths are generally flat, shaded, and protected from traffic, making them ideal for all ages and fitness levels. Many of the 10 easy routes in the area are perfect for families.
Most hiking trails in Guillac are dog-friendly, particularly the paths along the Nantes-Brest Canal and through the wooded areas. It's always recommended to keep your dog on a leash, especially in nature reserves or near livestock, and to respect local signage.
While hiking near Guillac, you can encounter several notable landmarks and natural features. The imposing medieval Josselin Castle, reflected in the Oust River, is a stunning sight. You'll also find picturesque locks along the Nantes-Brest Canal, and the charming Historic centre of Malestroit is within reach. The region is also rich in verdant forests and river valleys.
Yes, there are several circular hiking routes available. For example, the moderate Guillac lock – Fontaine Saint-Bertin loop from Guillac is a popular choice, leading through the Oust Valley and along the canal. Another option is the Guillac lock – Fontaine Saint-Bertin loop from Aire de covoiturage de La Pyramide, which also offers a circular experience.
The trails in Guillac are highly rated by the komoot community, with an average score of 4.6 stars from over 160 reviews. Hikers often praise the tranquil canal-side paths, the scenic views of historic sites like Château de Josselin, and the well-maintained routes through verdant forests and river valleys.
While specific public transport routes directly to all trailheads might be limited, the nautical stop at Guillac along the Nantes-Brest Canal is a popular starting point and often accessible. For more remote trails, personal transport or local taxi services might be necessary.
Absolutely. An excellent option for beginners is the Château de Josselin – Château de Josselin loop from Château de Josselin. This easy 3.1-mile (5.0 km) route takes about 1 hour 17 minutes to complete and offers beautiful views of the historic Château de Josselin, perfect for a gentle introduction to hiking in the area.
Guillac, located in Brittany, generally offers pleasant hiking conditions from spring through autumn. The verdant landscapes are particularly beautiful in spring with blooming flora, and the mild temperatures of summer and early autumn are ideal for exploring. The shaded canal paths and forests provide relief during warmer months.
Yes, a great example is the moderate Lock on the Canal – Josselin Castle loop from Saint-Servant. This 5.2-mile (8.4 km) path combines scenic sections along the Nantes-Brest Canal with stunning views of the historic Josselin Castle, offering a blend of natural beauty and cultural heritage.
Parking is generally available at popular starting points for trails, such as near the Guillac lock along the Nantes-Brest Canal or in nearby towns like Josselin. For specific routes, checking the trailhead information on komoot or local tourist office websites is recommended.


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