4.4
(951)
6,067
riders
504
rides
Touring cycling around Boullay-Les-Troux offers routes through varied landscapes at the edge of the Hurepoix plateaus and the Chevreuse Valley. The region is characterized by a mix of rural agricultural land, extensive forests, and river valleys. Cyclists can explore protected natural environments within the Parc Naturel Régional de la Haute Vallée de Chevreuse. The terrain includes both open agricultural spaces and forested paths, with some routes featuring challenging climbs.
Last updated: May 18, 2026
4.4
(68)
257
riders
50.7km
03:06
270m
270m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.7
(3)
16
riders
12.2km
00:50
130m
130m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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4.5
(32)
138
riders
Hard bike ride. Good fitness required. You may need to push your bike for some segments of this route.
4.7
(22)
154
riders
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(5)
22
riders
99.9km
06:10
730m
730m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Pretty building at Bordes which forms the entrance to the castle.
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It’s flat farmland around the regional aeroport but lovely to cycle through on a still day…watch the winds because that can make it a bit unpleasant…
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Nice spot when the weather is nice for a bike ride or a nice hike!
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Rambouillet Castle A former medieval fortress, Rambouillet Castle was gradually transformed into a pleasure residence by its illustrious owners and adorned with elegant decorations.
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Beautiful entrance to the abbey site (normally closed).
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Beautiful greenway. We need lots of them like this!
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Pretty castle well glimpsed at the heart of a beautiful gravel ride between Choisel and St Rémy
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There are over 460 touring cycling routes around Boullay-Les-Troux, catering to various skill levels. This includes 138 easy routes, 173 moderate routes, and 149 difficult routes, offering a wide range of options for exploration.
The terrain around Boullay-Les-Troux is quite varied, situated at the edge of the Hurepoix plateaus and the Chevreuse Valley. You'll encounter a mix of rural agricultural land, extensive forests, and river valleys. Routes often feature mostly paved surfaces, with some challenging climbs, especially in the Chevreuse Valley, alongside more gentle paths through woods and prairies.
The region is rich in both natural beauty and historical sites. You can cycle through the Parc Naturel Régional de la Haute Vallée de Chevreuse, which includes the scenic Chevreuse Valley and extends towards the vast Rambouillet Forest. Historical architecture like charming millstone houses and old farmhouses are common. Notable landmarks include the well-known Dampierre-en-Yvelines Castle, and the former Abbaye de Port-Royal-des-Champs.
Yes, the area around Boullay-Les-Troux features several impressive castles that can be incorporated into your cycling tours. Besides the prominent Dampierre-en-Yvelines Castle, you might also encounter La Madeleine Castle or Breteuil Castle, offering cultural stops during your rides.
Yes, several routes will take you past beautiful water features. The Montabé Wetland is a notable natural area, and you can also find highlights such as the Ponds of Parc des Côtes Montbron, Beauséjour Lake, and Étang des Noës, which add to the scenic appeal of the region.
The touring cycling routes around Boullay-Les-Troux are highly rated by the komoot community, with an average score of 4.3 stars from over 900 reviews. Cyclists often praise the diverse landscapes, from open agricultural spaces to dense forests, and the well-maintained paths that make exploring the Chevreuse Valley and Hurepoix Plateaus a rewarding experience.
Absolutely. There are 138 easy touring cycling routes around Boullay-Les-Troux. A great option for a relaxed ride is the Veloscenic: Chevreuse Valley Loop, an easy 7.6-mile (12.2 km) path that provides access to the diverse terrain of the Chevreuse Valley, featuring woods, prairies, and cultivated fields.
For experienced touring cyclists seeking a challenge, there are 149 difficult routes available. One such route is the Choisel Church – Path in Chevreuse loop from Saint-Rémy-lès-Chevreuse, a 31.4-mile (50.5 km) trail with significant elevation gain, offering a demanding yet rewarding ride through the region's varied landscape.
Yes, for those looking for longer rides, the area offers several options. The Hollande Pond – Rambouillet Castle loop from Saint-Rémy-lès-Chevreuse is a challenging 60.9-mile (97.9 km) route that takes you through extensive forested paths and past significant landmarks, ideal for a full day's adventure.
The region is enjoyable for touring cycling throughout much of the year. Spring and autumn generally offer pleasant temperatures and beautiful scenery, with blooming flowers or vibrant fall foliage. Summer can be warm but is also popular, especially for rides through shaded forest paths. Always check the local weather forecast before heading out.
Yes, many routes in the Boullay-Les-Troux area are designed as loops, allowing you to start and end at the same point. An example is the Veloscenic: Chevreuse Valley Loop, which is an easy and scenic option for exploring the valley.
While specific parking areas aren't detailed for every route, many touring cycling routes in the region, especially those starting from towns like Saint-Rémy-lès-Chevreuse, offer public parking facilities. It's advisable to check local maps or route descriptions for designated parking spots near your chosen starting point.
Boullay-Les-Troux and its surrounding towns, particularly those within the Chevreuse Valley, are generally well-connected by public transport, including regional train lines (RER B) that can take you to starting points like Saint-Rémy-lès-Chevreuse. This allows for convenient access to many touring cycling routes without needing a car.


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