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Brittany
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Lac D'Arzal

The best traffic-free bike rides around Lac D'Arzal

4.2

(36)

218

riders

26

rides

No traffic gravel bike trails around Lac D'Arzal are characterized by a diverse landscape, primarily defined by the Vilaine Estuary and its surrounding features. The region offers a blend of coastal scenery, tranquil riverine environments, and traditional Breton countryside. Notable features include the Arzal Dam, a significant structure on the Vilaine estuary, and varied terrain along the "La Littorale" cycle route. Gravel biking here involves a mix of quiet paved roads and unpaved sections, including dirt tracks.

Best no traffic…

Last updated: May 10, 2026

4.0

(2)

11

riders

#1.

Arzal Dam – Old Port of La Roche-Bernard loop from La Roche-Bernard

28.2km

02:02

340m

340m

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate
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Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate

Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.

Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Popular around Lac D'Arzal

Brittany by bike – cycling from Nantes to Mont-Saint-Michel

Traffic-free bike rides around Lac D'Arzal

Traffic-free bike rides around Lac D'Arzal

Other adventures around Lac D'Arzal

Brittany by bike – cycling from Nantes to Mont-Saint-Michel

Cycling Collection by

Le Voyage à Nantes

Tips from the Community

Aktivix 🌐
November 14, 2025, Redon

In 832, Conuvoion, a Breton monk, founded the Abbey of Saint-Sauveur in Redon with the support of the Carolingian Emperor Louis the Pious. A small rural community slowly grew up around the abbey. During the Middle Ages, the town benefited from its location on the Vilaine River, as trade goods could be transported upstream to Redon on ocean-going vessels. There, the goods were transshipped and transported further on inland waterway barges towards Rennes, the capital of Brittany. In the 19th century, Redon experienced another period of prosperity with the construction of the Nantes-Brest Canal. Even today, the old shipowners' houses and the large harbor basin bear witness to its history as a trading port.

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MarcM
August 22, 2025, Redon

Redon has managed to retain its quiet, small-town character, despite its intense activity (and traffic). Following the floods of 2024, the campsite is closed. The pedestrian street is pleasant and not overcrowded with shops. Just what you need. A visit to the port is also a pleasant experience.

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The Story of François and Thérèse Mitaillé On August 7, 1944, in the final chaotic weeks of the German occupation, François Mitaillé and his younger sister Thérèse left their home in Penhap, a small hamlet near Marzan. They wanted to return to the farm to tend to the animals. On their way, they were stopped by German soldiers, taken away, and never seen alive again. Days passed, then weeks. The village lived between hope and fear. Finally, it was their own father who, after an endless search, found their bodies—tortured and shot. The loss was immeasurable, not only for their family, but for the entire community. The memorial commemorates François and Thérèse, brother and sister, who were torn away by the violence of war in the prime of their lives. It stands here as a silent witness and a warning that freedom can never be taken for granted.

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through the countryside, always nice to find the canal again

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Moni
July 9, 2025, Barrage d'Arzal

The dam itself is interesting, but the route is not ideal for cyclists.

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Toto
July 8, 2025, Chemin de Terre

very beautiful

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to visit superb

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Melina
February 7, 2025, Jolie petite route

Pleasant section of the Rance and Vilaine cycle route, between Vieille Roche and Keraudrain.

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Frequently Asked Questions

How many no-traffic gravel bike trails are available around Lac D'Arzal?

There are over 20 traffic-free gravel bike routes around Lac D'Arzal, offering a variety of experiences from easy to difficult. The region is well-regarded by the komoot community, with an average rating of 4.3 stars.

What kind of terrain can I expect on the gravel bike trails near Lac D'Arzal?

The terrain around Lac D'Arzal is diverse, featuring a mix of quiet paved roads, dirt tracks, and unpaved sections. You'll encounter undulating landscapes along the Vilaine Estuary, coastal paths towards Pénestin, and tranquil routes through traditional Breton countryside. This variety makes it ideal for gravel biking.

Are there any family-friendly no-traffic gravel bike routes in the area?

Yes, many routes are suitable for families, especially those that stick to dedicated cycle paths or quieter country lanes. Look for routes marked as 'easy' or 'moderate' difficulty. While specific family-friendly routes aren't highlighted by name, the general nature of the 'no traffic' trails makes them safer for all ages.

What are some notable landmarks or attractions I can see along the gravel bike trails?

You'll find several interesting sights. The impressive Arzal Dam, Europe's largest estuary dam, is a prominent feature. Many routes also pass through the charming Old Port of La Roche-Bernard, a 'Small Town of Character' with historic houses. You might also cross the Morbihan Bridge or the Old Bridge.

Are there any challenging no-traffic gravel bike routes for experienced riders?

Absolutely. While many routes are moderate, there are 8 difficult routes for those seeking a greater challenge. For example, the Old Port of La Roche-Bernard – Port de Folleux loop from La Roche-Bernard is a longer, more demanding ride with significant elevation gain, offering a rewarding experience for seasoned gravel bikers.

What is the best time of year for gravel biking around Lac D'Arzal?

The region is enjoyable for gravel biking for much of the year. Spring and autumn offer pleasant temperatures and beautiful scenery, with fewer crowds. Summer can be warm but is also popular, especially along coastal sections. Winter can be cooler and wetter, but many trails remain accessible.

Can I find circular gravel bike routes that avoid traffic?

Yes, many of the no-traffic gravel bike routes around Lac D'Arzal are designed as loops, allowing you to start and end at the same point without retracing your steps. An example is the Arzal Dam – Old Port of La Roche-Bernard loop from La Roche-Bernard, which offers a scenic circular journey.

Are there options for food and drink along the trails, especially near the Arzal Dam or La Roche-Bernard?

Yes, you'll find amenities in the towns and villages along the routes. The area around the Arzal Dam and Marina often has cafes and restaurants. The historic Old Port of La Roche-Bernard is particularly well-equipped with pubs, cafes, and restaurants where you can refuel and relax.

Is public transport available to access the gravel bike trails around Lac D'Arzal?

While specific public transport links directly to trailheads can vary, major towns in the region, such as Redon, are accessible by train. From there, you might need to cycle or arrange local transport to reach specific starting points for the gravel trails. For detailed information on regional public transport, it's best to consult local transport authority websites.

Where can I park my car when starting a gravel bike ride in the Lac D'Arzal area?

Parking is generally available in the towns and villages that serve as common starting points for routes. For instance, you can often find parking near the Old Port of La Roche-Bernard or close to the Arzal Dam. Always check local signage for parking regulations and availability.

Are dogs allowed on the gravel bike trails around Lac D'Arzal?

Generally, dogs are welcome on trails in France, provided they are kept on a leash and you clean up after them. However, specific restrictions might apply in certain protected natural areas or on private land. It's always advisable to check local regulations for the specific section of the trail you plan to ride with your dog.

What is the typical length of the no-traffic gravel bike routes in this region?

The routes vary significantly in length to suit different preferences. You can find shorter rides, such as the Old Port of La Roche-Bernard – Villaine Valley loop from La Roche-Bernard at around 15 km, up to much longer excursions like the Old Port of La Roche-Bernard – Arzal Dam loop from La Roche-Bernard, which is over 46 km. This allows you to choose a route that matches your desired distance and time commitment.

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