Marais indivis de Grande Brière Mottière
Marais indivis de Grande Brière Mottière
4.3
(576)
11,732
riders
450
rides
Road cycling around Marais indivis de Grande Brière Mottière is characterized by a vast, open freshwater marsh, spanning approximately 7,000 hectares. This landscape features a striking horizontality with an intricate network of natural and man-made canals, reed beds, and wet meadows. The flat topography is ideal for road cyclists seeking gentle, scenic rides through preserved marshlands and traditional villages.
Last updated: August 21, 2026
13
riders
42.5km
01:44
190m
190m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
7
riders
34.7km
01:24
80m
80m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.

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4.9
(9)
88
riders
32.0km
01:18
60m
60m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
4.0
(1)
20
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
14
riders
120km
05:50
660m
660m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
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Popular around Marais indivis de Grande Brière Mottière
Church with a rather original front bell tower in two colors.
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Loscolo, a very beautiful sandy beach with a cycle path overlooking it. And perhaps a swim in the summer!
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The Devil's Table, with its strangely shaped rocks and Breton legends, is a must-see on the coastal paths of Piriac.
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The Customs House offers breathtaking views of the rugged Piriac coastline. Perfect for a contemplative break or a hike along the coastal paths. Access is easy, and the atmosphere is both wild and peaceful. A must-see for lovers of the sea and unspoiled landscapes!
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The area within the city walls is very nice; don't hesitate to try a galette at Chien Assi, it's amazing!!!
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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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The Marais indivis de Grande Brière Mottière is characterized by its flat topography, making it ideal for road cyclists seeking gentle, scenic rides. Many routes are classified as easy or moderate. For instance, the Saint-Lyphard – La Chaussée Neuve loop from La Chaussée Neuve is an easy 29.2-mile path that guides cyclists through the expansive marshland.
Yes, while the terrain is generally flat, there are longer routes that offer a good challenge for experienced cyclists. For example, the Rozé Port and Viewpoint – Bretesche Castle loop from Saint-Malo-de-Guersac is a moderate 45.8-mile (73.8 km) route that takes approximately 3 hours to complete, allowing for a more extended exploration of the region.
You'll encounter a vast freshwater marsh with an intricate network of natural and man-made canals, reed beds, and wet meadows. Notable points of interest include the Port of Bréca and the Port of La Chaussée Neuve, which offer picturesque views of the waterways. The Pierre Constant Site – Brière Marsh Nature Reserve is also a significant natural landmark.
Absolutely. The Brière marsh is a significant ecological site, boasting rich biodiversity, particularly for birds. It's a crucial area for the reproduction, migration, and wintering of various water bird species, including herons, egrets, bearded tits, marsh harriers, and avocets. Cycling through the preserved marshlands offers excellent opportunities for birdwatching.
The region is dotted with charming traditional villages featuring distinctive thatched cottages ('chaumières'). Exploring local villages like Kerhinet offers a glimpse into the region's heritage and architectural style. The unique legal status of the marsh, collectively owned by inhabitants since 1461, also contributes to its distinct cultural identity.
While specific parking areas for cyclists are not always explicitly marked, you can typically find parking in the various villages and hamlets throughout the region, such as Trignac, La Chaussée Neuve, or Saint-Malo-de-Guersac, which serve as common starting points for routes.
The region is pleasant for cycling from spring through autumn. Spring and early summer offer lush landscapes and active wildlife, while autumn provides cooler temperatures and beautiful marsh colors. The flat terrain makes it accessible for most of the year, but checking local weather conditions is always advisable.
Yes, the predominantly flat and easily navigable surfaces make many routes suitable for families. The Rozé Locks – Rozé Port and Viewpoint loop from Trignac is an easy 12.2-mile (19.7 km) trail, perfect for a family outing, offering scenic views of the marsh and its waterways.
Many of the road cycling routes in the region are designed as loops, allowing you to start and end in the same location. Examples include the Straw Bridge – Rozé Port and Viewpoint loop from Saint-Malo-de-Guersac and the Kerhinet – Kerhinet Village loop from Saint-Lyphard, providing convenient options for exploration.
Yes, the charming villages and hamlets scattered throughout the Brière marsh often have small cafes, restaurants, or local shops where you can stop for refreshments. Exploring these villages is part of the cultural experience, and they provide convenient breaks during your ride.
Road cycling here offers a unique immersion into a vast, open freshwater marsh, the second-largest in France. The striking horizontality, intricate network of canals, and traditional thatched cottages create a picturesque and tranquil environment. It's a chance to experience a rich, fragile ecosystem and a distinct cultural heritage at a leisurely pace.
There are over 440 road cycling routes available in the Marais indivis de Grande Brière Mottière, catering to various skill levels. This extensive network ensures plenty of options for exploring the unique marsh landscape.


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