4.1
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5,595
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Road cycling routes around Saint-Malo-De-Guersac are primarily situated within the Brière Regional Natural Park, an expansive marshland characterized by an intricate network of canals, reed beds, and grasslands. The terrain is generally flat, with gentle elevation changes, making it suitable for various fitness levels. Cyclists can explore the unique man-made landscapes and tranquil water bodies that define this region. The area offers a serene environment for road cycling, with routes often passing through picturesque villages and natural reserves.
Last updated: August 21, 2026
4.0
(1)
20
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(2)
15
riders
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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6
riders
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
3
riders
48.9km
01:58
180m
180m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
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The Saint-Nazaire U-boat bunker is one of five German U-boat bases built on the French Atlantic coast during World War II. The 301-meter-long bunker was built in just 16 months in 1941/42 using almost half a million cubic meters of concrete. Several hundred men were stationed here until May 1945; offices, workshops, and a medical center were housed under the roof, which was up to 9.60 meters thick. It was built on the site of the former overseas port from which steamers departed for Central America.
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High viewpoint over the Briére marsh
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The tower offers a very beautiful panorama of the park, it is worth stopping to climb.
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Very beautiful circuit through the countryside between Morbihan and Loire-Atlantique, passing through Briandais and the Château de la Roche Hervé.
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Escal' Atlantic is a fascinating museum that will take you aboard a liner 100 years ago. The interactive exhibition informs you about the liners of the time and many contemporary objects are exhibited.
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Built in the 14th century and rebuilt in the 19th century, the Château de la Bretesche stands out for its privileged location on the water's edge. Seeing it suddenly appear as you cycle along the D2 is a splendid sight.
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To do in different seasons to see the evolution of the marsh.
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There are over 360 road cycling routes around Saint-Malo-De-Guersac, offering a wide variety of options for exploring the Brière Regional Natural Park and its surroundings.
The terrain around Saint-Malo-De-Guersac is generally flat, characterized by the expansive marshlands of the Brière Regional Natural Park. You'll encounter an intricate network of canals, reed beds, and grasslands, with gentle elevation changes, making it suitable for various fitness levels. Some routes may extend towards coastal areas, offering different views.
The road cycling routes in Saint-Malo-De-Guersac are highly rated by the komoot community, with an average score of 4.1 stars from over 190 reviews. Cyclists often praise the tranquil marshland scenery, the unique natural environment, and the well-maintained paths that allow for a serene cycling experience.
Yes, the region offers routes for various fitness levels. While the majority of the 360+ routes are considered moderate, there are also over 90 easy routes for a more relaxed ride and 34 difficult routes for those seeking a greater challenge. The flat terrain of the Brière generally makes for accessible cycling.
While cycling, you can explore the unique marshlands of the Brière Regional Natural Park, known for its rich biodiversity. Notable natural features include the Pierre Constant Site – Brière Marsh Nature Reserve, offering close-up views of flora and fauna. You might also pass by the Port of Bréca, a charming spot within the marsh.
Absolutely. A prominent scenic spot is the Rozé Port and Viewpoint, which features a 24-meter-high belvedere offering outstanding panoramic views over the Brière wetlands. The Straw Bridge – Rozé Port and Viewpoint loop from Saint-Malo-de-Guersac specifically passes by this location.
Yes, the generally flat terrain and tranquil environment of the Brière Regional Natural Park make it suitable for family-friendly road cycling. Many routes are designed for leisurely exploration, allowing families to enjoy the unique landscapes and observe wildlife together. Look for routes marked as 'easy' for the most suitable options.
While the Brière Regional Natural Park is a natural haven, specific regulations regarding dogs on cycling paths can vary. It's generally advisable to keep dogs on a leash in protected areas to preserve wildlife. For detailed information on dog policies within the park, it's best to consult the official Brière Regional Natural Park website: Brière Regional Natural Park.
Accessing the Brière Regional Natural Park by public transport with a bike can be challenging as dedicated bike-friendly services might be limited. Some regional bus lines or trains connecting to nearby towns like Saint-Nazaire might allow bikes, but it's crucial to check their specific policies and schedules in advance. For general information on cycling in the region, you can refer to resources like France.fr.
Yes, parking is generally available in and around Saint-Malo-De-Guersac, particularly near popular starting points for cycling routes and attractions like Rozé Port. Many villages within the Brière Regional Natural Park also offer designated parking areas, making it convenient to access the cycling network.
Generally, no specific permits are required for cycling on public roads and designated cycle paths within the Brière Regional Natural Park. However, always respect local regulations, especially when entering protected natural reserves like the Pierre Constant Site, where specific rules might apply to preserve the environment.
The best time for road cycling in Saint-Malo-De-Guersac is typically during the spring (April to June) and early autumn (September to October). During these periods, the weather is usually mild and pleasant, with less rainfall and fewer crowds than in the peak summer months. The marshlands are particularly vibrant in spring, and autumn offers beautiful colors.
Yes, many of the road cycling routes around Saint-Malo-De-Guersac are designed as circular loops, allowing you to start and end your ride in the same location. Examples include the Salines – Route du Dervin loop from Montoir-de-Bretagne and the La Baule Beach – La Baule Bay loop from Montoir-de-Bretagne, which offer diverse scenery without needing a return trip.
Yes, the region around Saint-Malo-De-Guersac offers connections to significant national cycling routes. You can link up with sections of the Vélomaritime (EV4) and the V42, which traverse varied landscapes including the Atlantic coast and follow rivers and canals. These connections provide opportunities for longer tours and exploring beyond the immediate Brière area.


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