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Gravel rides
France
Brittany
Pontivy

Guillac

The best gravel rides around Guillac

4.3

(14)

163

riders

18

rides

Gravel biking around Guillac offers access to a network of trails through diverse landscapes in Brittany, France. The region is characterized by the hard-packed gravel towpaths of the Nantes-Brest Canal, which also forms part of the EuroVelo 1 route. Inland, riders can explore sections of the GR 37 hiking trail and the varied terrains of the Forêt de Paimpont, which includes forest trails and country roads. The surrounding verdant Breton countryside provides additional paths, featuring a mix of unpaved and…

Last updated: July 3, 2026

4.0

(3)

32

riders

#1.

The Old Bridge of Loyat – Josselin Castle loop from Loyat

59.8km

04:00

450m

450m

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

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Moderate

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

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

Hard

Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

Easy

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

Hard
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Tips from the Community

Desirai
August 6, 2025, View of Lac au Duc

Nice little spot to sit and have a snack peacefully by the water. It's right on the voie verte

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Great for a crepe break. Even better for a beer break!!

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Very beautiful castle, the crows that prowl around it make it look... strange.

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Magical town with a fairytale castle. (however, I recommend you swerve the Logis Hotel-Restaurant du Chateau). Or if you can find no other accommodation, at least avoid eating in the restaurant, which was one of the few outright poor places to eat I've found in France.

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Sculpture in the village of Néant-sur-Yvel https://morbihan.com/a-voir-a-faire/suivez-le-guide/les-nouveaux-chevaliers-de-la-table-ronde-neant-sur-yvel-fr-4411852/

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Very beautiful castle on the canalized Oust

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superb work which is completed over time. a beautiful stage in the hike.

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Josselin and its castle look very impressive from afar. A beautiful sight!

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Frequently Asked Questions

How many gravel bike trails are available around Guillac?

Guillac offers a network of over 20 gravel bike trails, catering to various skill levels. These routes explore the diverse landscapes of Brittany, from canal towpaths to forest trails.

What kind of terrain can I expect on gravel bike trails around Guillac?

You'll encounter a mix of surfaces. The Nantes-Brest Canal towpath, which runs through Guillac, is primarily hard-packed, fine gravel or crushed stone, offering a relatively flat ride. Inland, routes can include unpaved rural tracks, forest trails, and small country roads, especially as you approach areas like the Forêt de Paimpont.

Are there any easy or family-friendly gravel bike routes in Guillac?

Yes, there are easy options suitable for families. The canal towpaths are generally flat and well-suited for a relaxed ride. For a scenic and shorter loop, consider the Lac au Duc – Dukes' Lake loop from Taupont, which is rated as easy and covers about 14.7 km.

Can I find challenging gravel bike routes near Guillac?

Absolutely. For more challenging rides, head towards the legendary Forêt de Paimpont (Brocéliande Forest), located about 25 km from Guillac. This area offers technical gravel routes and varied forest trails. Routes like the Josselin Castle – View of Lac au Duc loop from Taupont, at over 100 km with significant elevation, are rated as difficult and provide a substantial challenge.

What are the best times of year for gravel biking in Guillac?

The verdant Breton countryside is particularly pleasant during spring and autumn, with milder temperatures and beautiful scenery. Summer also offers good conditions, especially along the shaded canal paths. While winter riding is possible, be prepared for potentially wetter and cooler weather on unpaved sections.

Are there any circular gravel bike routes in Guillac?

Many of the gravel bike routes around Guillac are designed as loops, allowing you to start and finish at the same point. Examples include the Lac au Duc – Dukes' Lake loop from Taupont and the Josselin Castle – Lock-keeper's house loop from Josselin.

What historical sites or natural attractions can I visit while gravel biking?

The region is rich in attractions. You can cycle along the historic Nantes-Brest Canal, passing numerous locks. The impressive medieval Château de Josselin is just 8 km from Guillac and can be reached via a beautiful route along the Oust Valley. The legendary Forêt de Paimpont offers mythical sites and ancient trees. You can also explore the peaceful Parc des Coteaux in Guillac itself.

Where can I park my car when starting a gravel bike tour in Guillac?

The Halte Nautique of Guillac, located directly on the Nantes-Brest Canal, serves as a convenient starting point and offers parking. For routes around Josselin, parking is available near the Château de Josselin. If you're exploring Lac au Duc, look for parking options around Taupont.

Is it possible to access Guillac's gravel bike trails using public transport?

While Guillac itself is a small commune, public transport options might be limited for direct access with bikes. It's advisable to check local bus services for routes connecting to larger towns like Ploërmel or Josselin, which may offer better connections and potentially allow bikes, though this often requires prior arrangement.

Are there places to eat or stay near the gravel bike routes in Guillac?

Guillac and nearby towns like Josselin and Ploërmel offer various options for refreshments and accommodation. You'll find local cafes, pubs, and restaurants in the village centers. The Halte Nautique of Guillac on the canal also provides a pleasant resting area with picnic tables.

What do other gravel bikers say about the trails in Guillac?

The gravel biking routes in Guillac are highly rated by the komoot community, with an average score of 4.4 stars from over 20 reviews. Riders often praise the tranquil canal paths, the diverse terrain, and the scenic beauty of the Breton countryside.

Are dogs allowed on the gravel bike trails around Guillac?

Generally, dogs are welcome on many outdoor trails in France, especially on canal towpaths and forest routes, provided they are kept under control, often on a leash. However, specific rules can vary, particularly in protected natural areas or private lands. Always ensure your dog doesn't disturb wildlife or other trail users.

Can I combine gravel biking with exploring the Nantes-Brest Canal?

Absolutely, the Nantes-Brest Canal is a central feature of gravel biking in Guillac. Its towpath is ideal for gravel bikes and forms part of the EuroVelo 1 (La Vélodyssée). You can easily spend a day cycling alongside the waterway, enjoying tranquil views and passing through charming lock-keepers' houses.

Are there any routes that offer views of Lac au Duc?

Yes, several routes provide excellent views of Lac au Duc. The Lac au Duc – Dukes' Lake loop from Taupont is a dedicated route that circles the lake, offering continuous scenic vistas. Longer routes like the View of Lac au Duc – Lake Trémelin loop from Ploërmel also incorporate sections with lake views.

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