Best attractions and places to see around Gueltas, a commune in the Morbihan department of Brittany, France, offers a tranquil base for exploration. The area is characterized by its historical landmarks, natural features, and cultural sites within a reasonable distance. Visitors can explore a diverse range of attractions, from medieval castles to scenic waterways. Gueltas serves as a gateway to discovering the rich heritage and landscapes of central Brittany.
Last updated: May 10, 2026
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The old castle is now partially open to the public. It looks very defensive.
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The Forêt lock is one of the many locks that balance the waters on the Nantes-Brest canal. It is named after the forest of Branguily forest which extends, at this location, on both sides of the canal.
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The Château de Pontivy, or Château des Rohan, was built between the middle of the 15th century and the beginning of the 16th century for and by the Viscounts of Rohan. Following the codes of Breton military architecture from the end of the 15th century, this castle is one of the last fortified castles to have been built in Brittany. You will notice that the facade allows adaptation to the development of fire artillery, but that particular attention is paid to comfort and decoration. The downspouts are worked, the skylights carved, and the interior of the castle is equipped with fireplaces and latrines, making it a little gem of comfort for the time. Two permanent exhibitions are housed there: one is dedicated to the sculptor Gaston Schweitzer, while the other is a more contemporary installation by Japanese artist Koki Watanabe. I personally loved the contrast offered by this rather austere facade with the charm of the half-timbered houses in the city center, which I invite you to take the time to discover.
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This curved section of the famous Nantes-Brest canal lets you discover the richness of the banks of the Blavet, which flows into the Lorient estuary in Morbihan. You can see that its bed is mainly artificial, and that its course is regulated by an ingenious system of locks. Slightly to the north of Mûr-de-Bretagne, the Guerlédan dam abruptly interrupts its course, thus giving birth to the largest artificial lake in Brittany, the Lac de Guerlédan. The gravelly surface is pleasant for both touring bikes, gravel and even road bikes. I am personally charmed by the melody of the tires on the gravel, so this portion is conducive to meditation and relaxation for me. A real moment of vacation!
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There’s a lovely campsite in Kerfourn called Ker Therese, ideal for stopping off whilst cycling the Nantes Brest Canal. #kertherese
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Charming small town on the banks of the river Oust and the Canal from Nantes to Brest which merge for part of the way. It is the home to the House of Rohan, members of which included viscounts, dukes and princes and has had a prominent role in French history. The name of the commune and it's coat of arms are identical to that of the family. Murals and historic buildings tell the story. There is also a helpful visitor center.
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The Nantes to Brest canal is a must to discover Brittany by bike
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You can explore several significant historical sites. The impressive Pontivy Castle, built for the Viscounts of Rohan, showcases late 15th-century Breton military architecture. Further afield, the 1000-year-old Château de Josselin offers a rich historical experience. The charming town of Rohan, home to the historic House of Rohan, also features murals and historic buildings that tell its past.
Yes, the area is rich in natural beauty. The Canal de Nantes à Brest: Pontivy to Mûr-de-Bretagne offers picturesque routes for walking and cycling, allowing you to discover the rich banks of the Blavet River. You can also visit the Écluse de la Forêt, a lock named after the adjacent Branguily forest, which provides a natural setting for outdoor activities.
The region around Gueltas is ideal for various outdoor activities. You can enjoy cycling along the Canal de Nantes à Brest, with routes ranging from easy to difficult. There are also numerous hiking opportunities, including easy walks like the 7 km 'Ville Pérot lock – Écluse de la Forêt loop from Saint-Gonnery' or more moderate trails such as the 'Port of Rohan – Rohan loop'. For gravel biking enthusiasts, there are several routes available, including challenging ones like the 'Cascade Lock loop from Croixanvec'.
Yes, families have several options. The Pontivy Castle is considered family-friendly and offers a glimpse into history. For active fun, l'Accrobrancherie in Saint-Gonnery is an adventure park with tree-top activities. Parc Aquarev in Loudeac and Spadium in Pontivy offer leisure and aquatic activities suitable for families.
For easy walks, consider trails along the Canal de Nantes à Brest. A notable easy route is the 'Ville Pérot lock – Écluse de la Forêt loop from Saint-Gonnery', which is about 7 km long. These paths often follow the canal, providing flat and scenic routes suitable for a relaxed stroll.
The best way to experience the Canal de Nantes à Brest is by cycling or walking. The section from Pontivy to Mûr-de-Bretagne is particularly recommended for discovering the rich banks of the Blavet River and its ingenious system of locks. The gravelly surface is pleasant for touring bikes, gravel bikes, and even road bikes, offering a meditative and relaxing experience.
Visitors particularly appreciate the blend of historical landmarks and scenic waterways. The Cascade Lock, where the Blavet river cascades, is a popular spot for its unique bridge allowing pedestrians and bikers to cross. The historical significance and architectural details of Pontivy Castle are also highly valued, as is the peaceful experience of cycling or walking along the Canal de Nantes à Brest.
Yes, the area features several charming towns. Rohan, situated on the banks of the Oust River and the Canal from Nantes to Brest, is known for its historical significance and murals. Pontivy also boasts a medieval old town, and Josselin offers a rich historical and cultural experience centered around its castle and river.
Yes, you can experience local culture and find fresh produce at various markets in nearby towns. Loudeac hosts a market on Saturdays (approx. 10 km away), Pontivy on Mondays (approx. 13 km away), and Locmine on Thursdays (approx. 24 km away).
The Écluse de la Forêt (Forêt Lock) is one of the many locks that regulate the waters on the Nantes-Brest canal. It is named after the Branguily forest, which extends alongside the canal at this location. It's a key point for understanding the canal's engineering and offers access to the surrounding natural forest.
Absolutely. For cycling, you can find routes like the 'Goirbal lock no. 62 – Rohan loop from Gueltas', which is an easy 16 km ride. More challenging options include the 'Cadoret Lock – La Tertraie Lock loop from Saint-Gonnery' at over 100 km. Many routes follow the scenic Canal de Nantes à Brest, offering a unique way to see the region. You can find more details on cycling routes around Gueltas.


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