4.3
(578)
2,161
riders
210
rides
Mountain biking around Saint-Grégoire offers a diverse landscape characterized by dense woodlands, tranquil riverside paths, and scenic pond areas. The region features gently rolling terrain, with routes often following the course of rivers like L'Ille and La Vilaine. This makes for varied riding experiences, from shaded forest trails to open paths alongside water bodies.
Last updated: July 1, 2026
4.5
(13)
36
riders
50.7km
03:40
300m
300m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.7
(15)
100
riders
30.6km
01:43
90m
90m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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4.6
(5)
19
riders
47.5km
03:11
270m
270m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.4
(19)
23
riders
28.0km
01:40
170m
170m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.8
(5)
29
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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Broken glass everywhere along the path!!.. Nothing prohibitive, but surprising to see it in quantity over several hundred meters in this area!
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The Ille-et-Rance Canal, which connects Rennes and Saint-Malo, is the oldest canal in Brittany. It is made up of three sections, including the one at this location. The canal is then made up of the bed of the Ille.
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Nowadays, only very few mills are still in operation in their original function, but they appear to hikers and cyclists along the river or canal as technical and historical monuments of an ancient craft tradition: Only through human ingenuity and the power of flowing water as driving energy, the heavy millstones inside were moved and so, for example, grain could be ground into flour (so-called grain mills) or oil could be pressed from fruits (e.g. olives) (so-called oil mills).
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With a population of 225,081 inhabitants
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The Mail lock in Rennes, lock n°1 of the Ille et Rance canal
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There are over 200 mountain bike trails around Saint-Grégoire, offering a wide range of options for different skill levels and preferences.
Yes, Saint-Grégoire offers a good selection of easy mountain bike trails. For example, the L'Ille – Saint-Grégoire Mill loop from Jules Ferry is an easy 30.2 km path that follows the L'Ille river, providing a pleasant ride for those new to mountain biking.
The terrain around Saint-Grégoire is characterized by dense woodlands, tranquil riverside paths, and scenic pond areas. You'll find gently rolling terrain, with many routes following the courses of rivers like L'Ille and La Vilaine, offering a mix of shaded forest trails and open paths alongside water bodies.
Yes, for experienced riders seeking a challenge, there are 31 difficult mountain bike trails in the region. These routes often feature more technical sections and greater elevation changes, providing a more demanding ride.
While exploring the trails, you might encounter interesting local sights. Consider visiting the historic Charbonnière Mill or the Waterwheel at Roazhon Park. The region also features the The Maltière Execution Hill and the Saint-Georges Palace.
Yes, many of the mountain bike trails in Saint-Grégoire are designed as circular routes, allowing you to start and finish at the same point. An example is the Cesson-Sévigné Ponds – Rennes Forest loop from Anatole France, which offers a varied ride through ponds and forest.
The mountain bike trails around Saint-Grégoire are highly rated by the komoot community, with an average score of 4.4 stars from over 600 reviews. Riders often praise the diverse landscape, including the quiet woodlands and scenic riverside paths.
Mountain biking in Saint-Grégoire is enjoyable throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant scenery, while summer provides longer daylight hours. Even in wet weather, many trails through dense woodlands can offer some shelter, though conditions may be muddier.
While Saint-Grégoire's terrain is generally gently rolling, many trails offer scenic views, particularly along the rivers L'Ille and La Vilaine, and through the open pond areas. The extensive Rennes Forest also provides picturesque natural vistas.
Saint-Grégoire is well-connected to Rennes, which has a comprehensive public transport network. Many trailheads are accessible from areas within or near Rennes, making it possible to reach routes via bus or other public transport options, though specific trailhead access may require some planning.
Parking is generally available at various starting points for the trails, particularly near larger recreational areas or villages. For specific routes, checking the komoot tour details will often provide information on recommended parking locations.
Given the varied terrain, suitable gear includes a mountain bike capable of handling both paved and natural surfaces, a helmet, and appropriate clothing for the weather. Depending on the season, consider layers, rain gear, and plenty of water, especially for longer routes like the Kitty bumps up – Rennes Forest loop from Gros-Chêne.


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