4.0
(6)
32
riders
4
rides
Gravel biking around Saint-Illiers-Le-Bois offers a rural experience within the Yvelines department. The area is characterized by a countryside setting with varied terrain, including moderate elevation changes and access to natural areas. This landscape provides a mix of unpaved roads and paths suitable for no traffic gravel bike trails. The region's proximity to forests like Forêt de Rambouillet and picturesque valleys further enhances the gravel biking opportunities.
Last updated: May 23, 2026
2
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
18.1km
01:24
150m
150m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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1
riders
67.1km
04:44
760m
760m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
40.0km
03:14
420m
420m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Saint-Illiers-Le-Bois
A lovely spot for a picnic. There's even a crêpe vendor. You can cross the Seine by ferry. Bicycles are welcome. Check in advance for opening and closing dates.
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Lots of beautiful things to see in this part of Vexin
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Pleasant, cool, shaded, to do during the week, not crowded! On the other hand, avoid on weekends and by bike, pedestrians don't pay attention, dogs are at granny's, children are not kept in check... etc. 28 km of flat.
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Plan to have good brakes for the descent!
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Greenway developed and very pretty
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While Saint-Illiers-le-Bois itself is a small rural commune, the surrounding area offers several excellent no-traffic gravel bike trails. Our guide features 5 carefully selected routes that prioritize quiet roads and natural paths, perfect for a peaceful gravel biking experience.
Yes, the region offers routes suitable for families looking for quiet gravel paths. While specific 'easy' routes aren't highlighted, many of the trails feature varied terrain without being overly strenuous. For a moderate option, consider the Woodland Path loop from Garennes-sur-Eure, which provides a pleasant ride through natural settings.
The terrain around Saint-Illiers-le-Bois is characterized by a mix of preserved rural landscapes. You can expect quiet country lanes, unpaved paths, and sections through woodlands. The moderate altitude changes (129 to 166 meters) mean engaging rides with some gentle climbs and descents, ideal for gravel biking without extreme challenges.
Yes, all the routes featured in this guide are circular, allowing you to start and finish at the same point. For example, the Cliffs of La Roche-Guyon – View of the route des crêtes loop from Bonnières offers a scenic circular journey through varied landscapes.
The region is rich in natural beauty and historical sites. While riding, you might encounter charming rural villages and picturesque valleys. Notable attractions nearby include the tranquil Neauphlette Church, the historic Château de Tilly, and the scenic Belvédère de Rolleboise, which offers expansive views. These can be incorporated into your gravel biking itinerary for a richer experience.
Most of the routes in this guide start from villages or towns that offer public parking facilities. For instance, routes like the Cliffs of La Roche-Guyon – Ile aux Dames loop from Bonnières typically have parking available in the starting point of Bonnières, making access convenient for cyclists.
The area is enjoyable for gravel biking across multiple seasons. Spring and autumn offer pleasant temperatures and beautiful scenery with changing foliage. Summer can be great, especially for rides through shaded forest sections. Even mild winter days can be suitable, though some unpaved paths might be muddier after rain.
Yes, for those seeking a longer challenge, the region provides options. The Cliffs of La Roche-Guyon – Ile aux Dames loop from Bonnières is a more demanding route, covering over 67 km with significant elevation gain, offering a substantial ride for experienced gravel bikers.
While Saint-Illiers-le-Bois itself is a small commune, the routes often pass through or near larger villages and towns where you can find cafes, restaurants, and small shops to refuel. It's always a good idea to check opening hours in advance, especially in smaller, more rural locations.
The komoot community highly rates the gravel biking experience around Saint-Illiers-le-Bois, with an average score of 4.0 stars. Riders often praise the peaceful, traffic-free nature of the trails, the charming rural landscapes, and the opportunity to explore the authentic French countryside away from busy roads.
Yes, the region benefits from its proximity to significant natural spaces. While not directly within Saint-Illiers-le-Bois, areas like the Forêt de Rambouillet offer extensive networks of trails suitable for off-road cycling. Locally, routes like the Woodland Path loop from Garennes-sur-Eure provide a taste of forest gravel riding.


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