4.3
(1648)
7,074
riders
328
rides
Mountain biking around Etang De Saint Quentin offers a network of trails primarily characterized by a mix of woodlands, open fields, and routes connecting various ponds and lakes. The terrain includes gentle inclines and some more challenging ascents, particularly on longer routes. The region features a landscape shaped by water bodies and historical sites, providing varied scenery for mountain bikers.
Last updated: May 8, 2026
4.4
(38)
220
riders
41.5km
03:28
450m
450m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.6
(54)
187
riders
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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4.8
(17)
130
riders
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.5
(8)
85
riders
53.1km
04:39
740m
740m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.4
(30)
142
riders
30.4km
02:23
280m
280m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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great intermediate level course of around 1 hour by mountain bike
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easy to ride on gravel
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easy calm but crowded on weekends in good weather
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The turtle head welcomes you at the end of the hike with its two big, friendly eyes!
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Water reservoirs on the Bièvre (river bearing the old name of the beaver), whose level is managed by the SIAVB (Intercommunal Syndicate for the Sanitation of the Bièvre Valley), the ponds of Moulin de Renard, Minière, Geneste, offer a natural reservoir for fauna and flora. Herons, swans, moorhens, mallards, great crested grebes, cormorants, barnacle geese, kingfishers and many other birds populate the banks of these ponds. Wild boars, foxes, roe deer are also present as well as wild rabbits, red squirrels or chipmunk squirrels (striped or Korean). Many flat or sloping paths allow hikers, joggers and cyclists to create their own circuits in this haven of greenery. Definitely worth discovering.
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The river flows through the narrow rocky chaos: it almost feels like you are in the mountains.
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There are over 320 mountain bike trails in the Etang De Saint Quentin area. This includes a mix of easy, moderate, and difficult routes, catering to various skill levels.
Yes, the region offers a good selection of trails suitable for beginners and families. There are 72 easy routes, often characterized by gentle inclines and well-maintained paths through woodlands and along the ponds. These are ideal for a relaxed ride.
Trail lengths vary significantly. For instance, the Carrefour des Petits Champs – Val-d'Or Pond loop from Saint-Quentin-en-Yvelines is about 25.5 km (15.8 miles) and takes around 2 hours 5 minutes. Longer, more challenging routes can extend up to 54 km (33.8 miles) and require over 4 hours to complete.
Absolutely. Etang De Saint Quentin features 69 difficult mountain bike routes. These often include more significant elevation gains and technical sections. An example is the La Madeleine Castle – Single from Port-Royal loop from Saint-Quentin-en-Yvelines, which is nearly 48 km (29.7 miles) long with over 560 meters of elevation gain.
The terrain around Etang De Saint Quentin is diverse, featuring a mix of woodlands, open fields, and routes connecting various ponds and lakes. You'll encounter gentle inclines on easier paths and more challenging ascents on longer, difficult routes, often with sections of singletrack through forested areas.
Yes, many of the mountain bike trails in the Etang De Saint Quentin area are designed as loops, allowing you to start and finish at the same point. For example, the Descent from Port-Royal Abbey – Single from Port-Royal loop from Trappes is a moderate 52.8 km (32.8 miles) circular route.
Spring and autumn generally offer the most pleasant conditions for mountain biking, with mild temperatures and vibrant scenery. Summer can also be enjoyable, especially in the shaded woodland sections, but be prepared for warmer weather. Winter riding is possible, but trails may be muddy or slippery, especially after rain or frost.
Many routes pass by significant landmarks and offer scenic views. For instance, trails like the La Madeleine Castle – Single from Port-Royal loop from Saint-Quentin-en-Yvelines incorporate historical sites such as La Madeleine Castle. You'll also find numerous picturesque spots around the various ponds and lakes, offering waterside views.
The area is highly rated by the komoot community, with an average score of 4.36 stars from over 1400 reviews. Reviewers often praise the varied terrain, the network of trails connecting beautiful ponds and historical sites, and the opportunity to ride through dense woodlands and open countryside.
While some popular routes can see more traffic, the extensive network of over 320 trails means it's often possible to find quieter paths, especially on weekdays or by exploring some of the less-trafficked moderate routes that venture further into the surrounding countryside away from the main ponds.
Many routes in the region pass through or near villages and towns where you can find cafes, bakeries, or small shops for refreshments. Planning your route with komoot allows you to identify such points of interest along your chosen trail.
While specific rental shops directly at the Etang De Saint Quentin might be limited, you can typically find bike rental services in larger nearby towns or in the greater Paris region. It's advisable to check with local sports shops or tourist information centers in advance for rental options.


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