4.5
(1154)
7,889
hikers
26
hikes
Hiking around Lac D'Arzal offers diverse terrain shaped by the Vilaine estuary, where the river meets the Atlantic Ocean. The landscape features riverbanks, coastal paths, and inland countryside, including bocage, forests, and marshes. Rolling countryside and cliffs provide varied elevation and viewpoints over the river. The area is defined by both freshwater and saltwater influences, regulated by the Arzal Dam.
Last updated: October 7, 2026
4.8
(8)
98
hikers
23.8km
06:26
310m
320m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.9
(20)
126
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

4.8
(11)
34
hikers
6.97km
01:54
110m
110m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.4
(43)
314
hikers
5.99km
01:40
120m
120m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.9
(8)
25
hikers
16.5km
04:22
160m
160m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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A dam behind which thousands of pleasure boats shelter from tides, storms, and salt.
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I was stunned by the number of boats that winter here.
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I did not visit the museum but there is a beautiful viewpoint.
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An incredible place that you discover around a bend. Magnificent!
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The road cuts through the famous rock that gave the town its name
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A fit cyclist, but not recommended in December. Beautiful route, but it's hard-earned.
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1
The Bourigan windmill is an old windmill that has lost its sails but is distinguished by its "large head" (a typical shape for a windmill with a massive body). It was heightened in the 20th century, giving it a unique profile. Although it is not open to the public, this windmill remains an emblematic vestige of Breton rural heritage, marking the region's milling history.
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There are over 20 hiking routes around Lac D'Arzal, catering to various fitness levels. You'll find 11 easy trails, 10 moderate routes, and 2 more challenging options.
The terrain around Lac D'Arzal is incredibly diverse, shaped by the Vilaine estuary. You can expect riverbanks, coastal paths, and inland countryside featuring bocage, forests like the forest of Ferel, and marshes such as the Branzais marshes. The area also offers rolling countryside and cliffs, particularly near La Roche-Bernard, providing varied elevation and scenic viewpoints.
Yes, there are several easy routes suitable for families. For example, the Port de Folleux – Chemin Creux de Lescuit loop from Folleux is an easy 6.97 km trail. Another accessible option is the La Roche-Bernard Bridge – Old Bridge loop from Nivillac, which is 6.03 km.
The area boasts several interesting landmarks. You can explore the picturesque Old Port of La Roche-Bernard, or visit the impressive Arzal Dam, Europe's largest estuarine dam, which also features a marina. The historic town of La Roche-Bernard itself offers charming old alleyways and belvederes with beautiful views over the Vilaine river.
Yes, many routes around Lac D'Arzal are circular, offering convenient starting and ending points. Examples include the Port de la Roche-Bernard – Panorama of the Vilaine loop from La Roche-Bernard and the La Roche-Bernard Bridge – Old Bridge loop from La Roche-Bernard.
The trails around Lac D'Arzal are highly rated by the komoot community, with an average score of 4.6 stars from over 370 reviews. Hikers often praise the diverse landscapes, from riverbanks to coastal paths, and the stunning views, especially from areas like La Roche-Bernard. The variety of routes, suitable for different abilities, is also frequently highlighted.
Generally, dogs are welcome on trails around Lac D'Arzal. However, it's always recommended to keep them on a leash, especially in areas with livestock or protected wildlife, such as the Branzais marshes. Please be mindful of local regulations and signage.
Absolutely. The region is known for its breathtaking views. You'll find impressive vistas over the Vilaine river from the cliffs near La Roche-Bernard and from various points along the estuary. The marina of Arzal also offers scenic perspectives of the surrounding landscape.
The spring and autumn months are generally ideal for hiking around Lac D'Arzal, offering pleasant temperatures and vibrant natural scenery. Spring brings blooming flora, while autumn showcases beautiful foliage. Summer can also be enjoyable, but it's advisable to start early to avoid the midday heat, especially on longer routes.
While specific public transport links directly to every trailhead might be limited, the region is accessible. Major towns like La Roche-Bernard, which serves as a starting point for several routes, may have bus connections. It's advisable to check local transport schedules for the most up-to-date information when planning your trip.
Parking is typically available near popular trailheads and in the towns and villages surrounding Lac D'Arzal, such as La Roche-Bernard and Folleux. Look for designated parking areas near ports or town centers, which often serve as convenient starting points for many of the region's hikes.


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