4.3
(185)
2,375
riders
364
rides
Road cycling around Boissy-Le-Sec offers varied terrain, situated between the flat Beauce plain and the undulating Hurepoix region. This geographical position provides a mix of open roads and routes with gentle climbs and descents. The area features the scenic Renarde Valley and extensive fields, alongside historic villages and landmarks. Cyclists can explore routes that combine natural landscapes with cultural heritage sites.
Last updated: May 7, 2026
34
riders
10.2km
00:29
150m
140m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
4.3
(3)
15
riders
41.4km
01:42
230m
230m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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4.4
(14)
13
riders
21.1km
00:57
150m
140m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
5.0
(1)
11
riders
30.8km
01:20
220m
220m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
4.0
(3)
9
riders
20.2km
01:04
280m
280m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
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nice but watch out for the cobblestones
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During the French Revolution, the church was converted into a "Temple of Victorious Reason" and later served as a prison until 1795.
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A Catholic parish church dedicated to Saint Germain of Auxerre, positioned in the town center facing the castle on Place du Général-de-Gaulle. Construction began in 1150 under the canons of Saint-Chéron and was completed in the 12th century, though the building endured significant damage during the Hundred Years' War and Wars of Religion before being restored. The church has been classified as a historical monument since 1967 and measures fifty meters in length with its north spire reaching fifty meters in height.
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The fortress once held up to 300 prisoners simultaneously, as recorded in revolutionary period prison registers when it served as a royal prison.
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Dourdan Castle is a 13th-century fortress built by King Philip Augustus between 1220-1222, representing the pinnacle of "Philippian" military architecture with its square plan, defensive towers, and isolated donjon. The castle holds significant historical importance as the birthplace of Hugh Capet, the first Capetian king of France, whose father built an earlier wooden fortress on the site. Throughout its history, the castle served various roles including royal residence, hunting lodge, prison, and military barracks before being restored as a historical monument in 1964.
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Great castle. A small collaborative cafe has opened right next door. You have to check the opening hours.
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Do not hesitate to enter the course (museum and toilets)
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There are over 370 road cycling routes available around Boissy-Le-Sec, offering a wide range of options for different skill levels.
The region offers a diverse cycling experience, blending the flat, open roads of the Beauce plain with the more undulating terrain of the Hurepoix region. You'll find routes with gentle climbs and descents, particularly around the scenic Renarde Valley, as well as extensive fields providing open vistas.
Yes, there are over 100 easy road cycling routes. An excellent option for beginners is the Blancheface Oratory loop from Sermaise, which is 6.2 miles (10.0 km) long and features a moderate elevation gain, typically completed in about 30 minutes.
You can incorporate historical exploration into your rides. The area features sites like the 12th-century Saint-Louis Church and the medieval Château de Boissy-le-Sec. Nearby, you can also visit the impressive Château de Dourdan and the historic Saint-Sulpice Church of Saint-Sulpice-de-Favières.
While the region is known for gentle undulations, the Hurepoix area offers routes with more notable elevation changes. For a moderate challenge, consider the Brières-les-Scellés Church – Brières-les-Scellés loop from Brières-les-Scellés, which covers 33.7 miles (54.2 km) with varied terrain.
The area is highly rated by the komoot community, with an average score of 4.4 stars from over 160 reviews. Cyclists often praise the combination of quiet country roads, varied terrain, and the opportunity to explore charming historic villages and natural landscapes.
Yes, many routes in the area are designed as loops, allowing you to start and end in the same location. Examples include the La Juine – Brières-les-Scellés loop from Brières-les-Scellés and the Villeconin Castle – Villeconin loop from Saint-Hilaire.
Spring and autumn generally offer the most pleasant conditions for road cycling in the Essonne region, with mild temperatures and beautiful scenery. Summer can also be enjoyable, especially in the mornings or late afternoons, though it can get warm.
Yes, the presence of numerous easy routes and quiet country roads makes the area suitable for family cycling. Routes with less elevation gain and shorter distances, like the Blancheface Oratory loop from Sermaise, are good starting points for families.
Absolutely. The network of roads connecting the Beauce plain and Hurepoix region allows for longer rides. Routes like the Brières-les-Scellés Church – Brières-les-Scellés loop from Brières-les-Scellés (33.7 miles / 54.2 km) provide a good foundation for extending your cycling adventures.
The Renarde Valley is a designated natural site offering picturesque views. You'll also cycle through extensive fields, particularly around areas like Le Rotoy, which provide open vistas and a sense of tranquility. The five-hectare park of the Château de Boissy-le-Sec, with its ancient trees and rose bushes, also offers a beautiful setting.
Boissy-Le-Sec is located in the Essonne department, and while specific direct public transport links to trailheads might vary, regional train services (RER) connect to nearby towns like Dourdan, from which you can cycle to various routes. It's advisable to check local transport schedules for the most up-to-date information.
Many of the routes start from villages or towns like Sermaise or Brières-les-Scellés, where you can typically find public parking areas. It's recommended to check the starting point of your chosen route on komoot for specific parking suggestions.


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