4.4
(106)
1,001
riders
117
rides
Touring cycling around Etang De Tremelin offers a diverse landscape centered on a 50-hectare lake, surrounded by 220 hectares of preserved forest and moorland. The region features unique geological formations such as the Vallée de la Chambre au Loup, characterized by steep-sided valleys and purple schist outcrops. This area provides varied terrain for cyclists, ranging from lakeside paths to routes through deciduous and coniferous woods. The natural environment is recognized for its ecological richness.
Last updated: May 7, 2026
5.0
(5)
48
riders
5.55km
00:22
20m
30m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
35
riders
19.5km
01:13
120m
120m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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30
riders
47.9km
03:55
440m
440m
Hard bike ride. Good fitness required. You may need to push your bike for some segments of this route.
4.0
(1)
14
riders
13.9km
01:06
90m
90m
Hard bike ride. Great for any fitness level. You may need to push your bike for some segments of this route.
7
riders
12.2km
00:49
70m
80m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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For a photo with the legendary Excalibur sword.
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Section of path by the Careil pond. Steep slope at one end of the section ;)
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Very wet at the moment, very heavy ground
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a great place for the whole family with a very beautiful view especially at sunset
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very beautiful place for all ages, for young people there is tree climbing and you can take beautiful photos tree climbing
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nice spot for a souvenir photo during the hike. Next to it, a place to have a drink or eat an ice cream before resuming the hike
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The Careil pond is located in Ille-et-Vilaine in the town of Iffendic, 30 km from Rennes. This sensitive natural area owned by the Ille-et-Vilaine Departmental Council of 96 hectares is located within a depression framed by plateaus. (Wikipedia)
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Beautiful trail near Lake Tremelin
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There are over 100 touring cycling routes around Etang De Tremelin, offering a wide range of options for different skill levels and preferences. The komoot community has contributed to a diverse network of paths through forests, moorlands, and along the lake.
The routes feature a varied terrain, from lakeside paths to trails through deciduous and coniferous woods. You'll encounter mostly paved surfaces, quiet roads, and some unpaved sections with loose gravel and asphalt. This diversity makes the area suitable for road bikes, mountain bikes, and gravel bikes.
Yes, Etang De Tremelin offers several easy routes perfect for families or those new to touring cycling. A popular choice is the Lake Trémelin – Careil Pond loop from 2, which is 12.1 km long and features gentle elevation changes. The region also has a family-friendly 5km loop around the lake for a relaxed experience.
The region is rich in natural beauty. Don't miss the striking Vallée de la Chambre au Loup, often called the 'Grand Canyon' due to its steep-sided valleys and unique purple schist rock formations. The Brocéliande Forest, known for its mythical atmosphere, also borders the area. You can experience these features on routes like the Vallon de la Chambre au Loup – Lake Trémelin loop from 2.
Absolutely. For a more demanding ride, consider the Lake Trémelin – Boutavent Castle Ruins loop from 2. This 47.9 km route includes significant elevation changes and leads through forested areas towards the historic Boutavent Castle Ruins, offering a rewarding challenge.
Beyond the natural landscapes, you can explore several points of interest. The Lake Trémelin viewpoint offers stunning vistas. The Domaine de Boutavent features medieval castle ruins that are undergoing restoration, providing a glimpse into the region's history. The area is also at the gateway to the legendary Brocéliande Forest, known for its enchanting sites.
Yes, parking facilities are available at Etang De Tremelin, making it convenient to start your cycling adventures. The local tourist office at the lake is also working towards 'Accueil Vélo' certification, which includes services like bike shelters and water points.
While direct public transport options to the immediate lake area might be limited, the VD7 cycle route from Saint-Pern to Redon crosses Iffendic, which is near Etang De Tremelin. Several bike paths and gentle lanes allow cyclists to reach Trémelin or travel to Montfort, suggesting connections to broader transport networks.
The area is highly rated by the komoot community, with an average score of 4.4 stars. Reviewers often praise the diverse landscape, the well-maintained paths, and the variety of routes that cater to all ability levels, from easy lakeside loops to more challenging rides through the unique Vallée de la Chambre au Loup.
Yes, the area around Etang De Tremelin offers amenities for visitors. The local tourist office is located at the lake, and the region caters to various activities, implying that there are facilities for refreshments. In July and August, 'Wednesdays of the Lake' also feature shows and concerts, often accompanied by food options.
Yes, you can enjoy a refreshing swim at the supervised beach on Etang De Tremelin. The beach is Blue Flag certified in summer, ensuring a clean and safe environment for water activities.


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