4.4
(115)
764
hikers
12
hikes
Hiking around Blain offers routes through a landscape characterized by low elevation changes, often following waterways and historical sites. The terrain primarily consists of flat paths, suitable for various activity levels. Many trails feature views of the Château de la Groulais and sections along the Blain Cycle Bridge, indicating a mix of natural and man-made features. The area provides accessible outdoor experiences with gentle gradients.
Last updated: June 25, 2026
4.7
(6)
36
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.0
(1)
16
hikers
14.4km
03:41
50m
50m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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5.0
(3)
17
hikers
13.7km
03:27
20m
20m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
10
hikers
7.09km
01:48
20m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
6
hikers
15.4km
03:53
20m
20m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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A friendly place for a break with a pleasant view
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This is lock number 11. On the other bank you can admire the Groulaie forest.
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Beautiful medieval castle. The main building is more recent. As a side note, the Isac River fed the castle's imposing moats, now dry, before being channeled to the current marina.
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The Monkey Bike Bar is a must-see place (Bar) on the Nantes-Brest canal! ideally located on the port of Blain with a terrace to quench your thirst with a nice view! Plus there is a bike shop behind the bar (Cycles riflet). Don’t hesitate to stop by! schedules available on Google and social networks, depending on the seasons.
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Located at the exit of the town of Blain, just next to the Nantes-Brest canal, this old medieval fortress invites you to walk in the footsteps of its prestigious guests such as the King of France Henry II, Queen Catherine de Medici or Duchess Anne of Brittany.
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The Château de la Groulais was the largest fortress in the region at the time and was the home of several personalities, including Olivier V de Clisson and Marie Bonaparte, etc.
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The Château de la Groulais, or Blain, is a medieval fortress located in the town of Blain, in Loire-Atlantique. Built in the 12th century by the Duke of Brittany Alain Fergent, then enlarged in the 13th century by the constable Olivier I de Clisson, and heavily remodeled in the 16th century in the Renaissance style, it was part of the defenses of the Franco-Breton border with the castles of Vitré, Fougères, Châteaubriant, Ancenis and Clisson.
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There are over 10 hiking trails around Blain, offering a variety of experiences. These include 6 easy routes and 5 moderate routes, ensuring options for different fitness levels.
Yes, many trails around Blain are well-suited for families. The landscape is characterized by low elevation changes and primarily flat paths, making them accessible. For an easy and enjoyable family outing, consider the Blain Cycle Bridge – Château de la Groulais loop from Blain, which is 3.8 miles (6.2 km) long.
Yes, Blain offers several excellent circular hiking routes. A popular choice is the Circuit des Sites and the château de la Groulais — loop from Blain, a 5.5 miles (8.9 km) trail that explores the historic Château de la Groulais area.
Hiking around Blain offers views of several notable landmarks. The prominent Château de la Groulais is a frequent feature on many routes. You can also discover the View of the Isac dam and the Nantes-Brest canal from Bout du Bois, or the historic La Magdelaine Chapel in Iff.
Hikes in Blain vary in duration. Many easy trails can be completed in 1.5 to 2 hours, while moderate routes might take 3 to 4 hours. For example, the Château de la Groulais – Blain Cycle Bridge loop from Blain is a moderate 9.0 miles (14.4 km) path that typically takes around 3 hours 40 minutes.
Yes, parking is generally available near the main trailheads and popular starting points in and around Blain, especially close to the Château de la Groulais and other well-known access points for the canal paths.
Most hiking trails in Blain are dog-friendly, provided your dog is kept on a leash. The flat canal paths and open areas are often ideal for walks with canine companions. Always ensure to clean up after your pet.
The best time to hike in Blain is typically from spring through autumn (April to October), when the weather is mild and the natural scenery is vibrant. The relatively flat terrain also makes it suitable for pleasant walks during these seasons.
Yes, winter hiking is possible in Blain. The trails are characterized by low elevation changes and flat paths, which generally remain accessible even in colder months. While some paths might be damp, significant snow or ice is uncommon, making it a viable option for year-round outdoor activity.
Blain, as a town, offers various amenities including cafes, restaurants, and shops where you can find refreshments before or after your hike. Some routes, particularly those passing through the town center or along the canal, may have options conveniently located nearby.
The hiking trails in Blain are highly rated by the komoot community, with an average score of 4.3 stars from over 100 reviews. Hikers often praise the gentle gradients, the scenic canal paths, and the historical points of interest like the Château de la Groulais.
Absolutely. Blain is known for its accessible terrain, with 6 out of 11 routes classified as easy. A great option for beginners is the Château de la Groulais – Lock 11 — La Prée loop from Blain, a 4.4 miles (7.1 km) trail with minimal elevation gain.


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