55
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35
rides
Road cycling routes around Etang De La Forge offer varied terrain within the Ille-et-Vilaine department of France. The region is characterized by a rugged landscape, including schist outcrops and diverse vegetation ranging from prairies to woodlands. While paths immediately around the lake are generally flat, the broader area features an extensive network of cycling routes, often utilizing paved towpaths and former railway lines. These routes provide options for road cyclists seeking both leisurely rides and more demanding excursions.
Last updated: May 24, 2026
5
riders
75.9km
03:15
650m
650m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5
riders
23.9km
01:02
170m
170m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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4
riders
41.5km
01:53
390m
390m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
4
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
2
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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A small town of character, La Guerche-de-bretagne is full of charm, its cobbled streets inviting you to stroll among the half-timbered houses. Source: https://www.petitescitesdecaractere.com/cites/la-guerche-de-bretagne
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The church, which consists of a large nave and two six-bay aisles, a transept, and a three-bay choir without an ambulatory, is 65 meters long. The transept is 26.50 m long, and the naves are 17.5 m wide. The bell tower is 65 meters high without the cross. It has a set of five bells made in 1895 by the Bollée foundry in Le Mans: Saint-Nicolas (the bourdon), weighing 4027 kg, playing the A of octave 2 Anne, weighing 1552 kg, playing the D of octave 3 Marie, weighing 1067 kg, playing the M of octave 3 Joséphine-Jeanne, weighing 726 kg, playing the F sharp of octave 3 Henriette-Victorienne, weighing 450 kg, playing the A of octave 3
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The original chapel, initially dedicated to Notre-Dame, was built by Geoffroy IV, Baron of Châteaubriant, on the site where the cattle market was held from May to October until 1763. A text attests to its existence in 1263. [Threatening to fall into ruin, it was demolished in 1518, leaving only the choir of the old chapel standing. The place of worship was immediately rebuilt in a more spacious form using Châteaubriant schist (Nozay stone), based on the plans of Jean Delorme, brother of Philibert Delorme, thanks to the demolition of a neighboring house and the financial support of Jean de Laval. However, the latter's poor financial situation meant that by 1530, only the nave of the building had been built. At the death of Françoise de Foix in 1537 and Jean de Laval in 1543, the Notre-Dame chapel still lacked a framework. It was not until 1551 that the final work was undertaken by Baron Anne de Montmorency. The dedication of the new place of worship took place ten years later, on November 5, 1561, in the presence of the coadjutor of the Bishop of Nantes, and the name of Notre-Dame was changed to Saint-Nicolas, for an unknown reason. On the same day, the body of Jean de Laval, then encased in a lead reliquary, was transported from the castle chapel to the new building. Jean de Laval had wished to see the chapel erected as a collegiate church, but this wish was not granted. However, the building, as vast as a church, shared the honors of worship with the Church of Saint-Jean de Béré, which was then the parish church of the town, until the Revolution. Indeed, the Saint-Nicolas chapel, although of undeniable architectural value, was not suitable for worship in a parish as large as that of Châteaubriant. Nevertheless, in the 15th and 16th centuries, masses, vespers, and many ceremonies were held in the chapel for reasons of convenience, as it was closer to the town of Châteaubriant, while baptisms were all celebrated at Saint-Jean de Béré. At the end of the 19th century, the church, which became the parish seat in 1801, was completely rebuilt. The architect Eugène Boismen drew up the plans, inspired by those of the Saint-Nicolas basilica in Nantes, one of the first neo-Gothic projects in France, which was beginning to inspire architects throughout the west of the country. The foundation stone was blessed on April 25, 1875, by Bishop Fournier of Nantes. The choir, sacristies, transept, and five bays were only completed at the time of the consecration, which was performed by his successor, Bishop Le Coq, on February 1, 1881. The foundations of the bell tower and the remaining bay began in June 1892, based on plans by architect François Bougoüin. The tower and spire were completed in August 1894.
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nighttime. A medieval fortress and Renaissance building, Châteaubriant Castle recounts ten centuries of history. In the Middle Ages, Châteaubriant Castle was at the heart of the Marches of Brittany. It served as a stronghold defending the duchy against the Kingdom of France. The keep, ramparts, seigneurial chapel, and the medieval courtyard lodgings still bear witness to the power of this fortress. In the 16th century, the bailey became a residence opening onto the gardens. The castle gardens are open to the public from February to December. Visit maps are available at the reception-shop for a better understanding of the site. A 3D space allows you to discover, with free access, the architectural evolution of the castle, from the 11th century to the present day. From February to December, heritage mediators will accompany you on an in-depth tour of the castle, its keep, and its gardens. During school holidays, family workshops allow parents and children to develop their creativity or spark their curiosity! Opening days: Gardens are open to the public, Wednesday to Sunday: 9am-6pm (February-March and October-December) or 9am-7:30pm (April-September). Prices: - Free entry for those over €0.00 (Free access to the château gardens) - Individual adult rate from €3.00 to €6.00 (Guided tours, free for those on minimum income and special cards) - Individual child rate from €0.00 (Guided tours free for those under 26) - Individual child rate from €0.00 (Guided tours free for those under 26) Child from €4.00 to €8.00 (Family activity) - Adult group rate from €5.00 (From 15 people) Payment methods: Credit cards - Bank and postal checks - Cash Tours Self-guided tours (individual): Yes Guided tours (individual): Yes Average visit duration (individual): 1 hour Self-guided tours (groups): Yes Guided tours on request (groups): Yes Guided tours (groups): Yes Average visit duration (groups): 1 hour Languages: Tour: French, English - Signs: French, English Services: Interactive kiosk - Shop - WiFi Additional information: Groups of 15 people or more are welcome - Pets allowed (Dogs on leashes are allowed in the park.) - Points of interest visible without a tour Access Location: SNCF train station: 0.5 km
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This recently built church (end of the 19th century) is visible from afar with its 65 meters in height.
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The castle is a self-guided tour. A little tip: there are bike racks inside the castle, just beyond the entrance.
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very pleasant little break at the edge of the pond on the promenade which also borders the castle ramparts.
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A medieval fortress and Renaissance building, Chateaubriant Castle tells the story of ten centuries of history. In the Middle Ages, the castle was at the heart of the Marches of Brittany. It served as a stronghold that defended the duchy against the Kingdom of France. The keep, ramparts, seigneurial chapel, and medieval courtyard lodgings still bear witness to the power of this fortress. In the 16th century, the bailey became a residence opening onto the gardens.
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There are over 40 road cycling routes around Etang De La Forge, offering a variety of distances and difficulty levels. You'll find a balanced mix of easy and moderate routes to explore the region.
The terrain around Etang De La Forge is characterized by its ruggedness and diverse natural features, including schist outcrops. While immediate paths around the lake might be flatter, the broader Ille-et-Vilaine department features an extensive network of cycling routes, often utilizing paved towpaths and former railway lines, making them suitable for road bikes. Expect varied landscapes from prairies and woodlands to paths along the Semnon river.
Yes, approximately half of the routes around Etang De La Forge are classified as easy. For a shorter, accessible ride, consider the Martigné Ferchaud church loop from Martigné-Ferchaud, which is about 24 km long and leads through the local area.
Absolutely. For a more demanding excursion, the Châteaubriant Castle – La Guerche-de-Bretagne loop from Martigné-Ferchaud covers over 100 km and connects historical sites through the rural landscape. Another moderate option is the Martigné Ferchaud church – Le Clos Loisel loop from Martigné-Ferchaud, exploring the countryside over 75 km.
Road cycling routes in the area often pass by historical sites and natural features. For instance, the Château de Châteaubriant – Torche Pond loop from Martigné-Ferchaud takes you past the impressive Château de Châteaubriant. The region itself is known for its historical iron forges and the natural beauty of the lake, which is an ornithological reserve.
Yes, many of the road cycling routes around Etang De La Forge are designed as loops, allowing you to start and end in the same location. Examples include the Martigné Ferchaud church loop from Martigné-Ferchaud and the longer Châteaubriant Castle – Château de Châteaubriant loop from Martigné-Ferchaud.
Yes, Etang De La Forge is recognized as a 'Natural Sensitive Area' and functions as an ornithological reserve, attracting thousands of migratory birds annually. While cycling, you'll encounter diverse vegetation including prairies, woodlands, reed beds, and amphibian lawns, making it excellent for birdwatching and nature observation.
The region's diverse vegetation changes with the seasons, offering different scenic backdrops. Summer months are popular, especially if you wish to combine cycling with water-based activities like supervised swimming at the lake. Spring and autumn also provide pleasant conditions for cycling with milder temperatures and beautiful foliage.
Absolutely. Beyond road cycling, Etang De La Forge offers various outdoor activities. You can enjoy hiking on designated paths, fishing, boat and pedalo hire, kayaking, and supervised swimming during the summer. There's also a 2.5 km interpretive trail with sound stations for a deeper dive into the local environment.
Martigné-Ferchaud, the town closest to Etang De La Forge, offers amenities. The area also has a campsite with views of the pond, providing accommodation options. For more information on local activities and facilities, you might find details on the Ille-et-Vilaine tourism website.
Yes, several routes highlight the region's historical significance. The Châteaubriant Castle – La Guerche-de-Bretagne loop from Martigné-Ferchaud is a prime example, connecting historical castles and towns through the rural landscape, reflecting the area's past with iron forges.


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