4.5
(55)
3,557
runners
302
runs
Jogging routes around Boissy-Le-Sec traverse a diverse landscape, situated between the agricultural plains of Beauce and the valleys and hills of Hurepoix. The region features the classified Renarde Valley, offering varied topography with both flat stretches and gentle inclines. Additionally, the extensive wooded park of the Château de Boissy-le-Sec provides shaded paths through ancient oak trees and a network of alleys. This mix of open spaces and undulating paths caters to different levels of physical activity.
Last updated: July 5, 2026
3.0
(1)
25
runners
13.5km
01:30
150m
150m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(1)
9
runners
10.5km
01:06
30m
30m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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7
runners
6.05km
00:45
70m
70m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(1)
8
runners
14.3km
01:32
40m
40m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
runners
8.92km
00:57
90m
90m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The original 13th-century wooden hall housed a royal courtroom on its upper floor where civil, judicial, feudal, and forestry cases were tried until the 18th century.
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The Halle de Dourdan is a 19th-century market hall built in 1836 that replaced a medieval wooden structure dating from around 1228. Measuring 38 meters long and 14 meters wide, this impressive building features two pavilions at each end connected by a central aisle divided into seven bays. The hall serves as the heart of Dourdan's community life, hosting the weekly Wednesday and Saturday markets as well as annual festivals including the Medieval Festival in June and the Saint-Félicien Festival in September.
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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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Its dimensions are impressive: 38 meters long and 14 meters wide! The first hall of Dourdan built in the 13th century consisted of a vast wooden frame. It was enlarged in 1480 and 1486. Until the 18th century, a royal audience stood upstairs where civil, judicial, feudal and forest offenses were judged. Due to its dilapidation, it was decided in 1829 to demolish the hall and build a new one, the one you see today.
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Well, the first comment is perfectly fine... At the historic monument in 1964...
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The Château de Dourdan is an old fortified castle dating from the 13th century. The remains stand in the former province of Hurepoix, the current town of Dourdan in the department of Essonne, forty-six kilometers south-west of Paris. Completed around 1222 by Philippe Auguste, this castle succeeded a wooden building dating from Hugues Capet. The plan is regular with a wide moat, round towers, a defensive gatehouse, a vast central courtyard bordered by the royal residence and a chapel. Dourdan is one of the only fortresses in the Ile-de-France region that has retained most of its structures: keep, towers, dry ditches...
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Dourdan Castle, completed around 1222 by Philippe Auguste, succeeded a wooden building dating from Hugues Capet. It is the culmination of the so-called Philippian system which is characterized by a regular plan, a wide ditch, round towers at the angles, the most important of which is the main tower, three flanking towers, a defensive entrance gate, a vast courtyard. central bordered by the royal residence and a chapel. In Ile-de-France, Dourdan is one of the only 13th century fortresses that has retained most of its structures: keep, towers, dry ditches ...
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There are over 260 running routes around Boissy-Le-Sec, offering a wide variety of options for different preferences and fitness levels. These include 17 easy routes, over 200 moderate routes, and more than 40 challenging trails.
Jogging routes in Boissy-Le-Sec offer a diverse landscape. You'll find paths traversing the agricultural plains of Beauce, undulating trails through the valleys and hills of Hurepoix, and scenic stretches within the classified Renarde Valley. Many routes also lead through the extensive wooded park of the Château de Boissy-le-Sec, providing shaded alleys and ancient trees.
Yes, Boissy-Le-Sec offers 17 easy running routes perfect for beginners or those looking for a more relaxed jog. These trails typically feature gentler inclines and less challenging terrain, allowing you to enjoy the scenery at a comfortable pace.
The running trails in Boissy-Le-Sec are highly rated by the komoot community, with an average score of 4.5 stars from over 40 reviews. More than 3000 runners have explored the area, often praising the varied terrain, the tranquility of the wooded sections, and the picturesque rural landscapes.
Yes, many of the running routes around Boissy-Le-Sec are circular, allowing you to start and finish at the same point. For example, the Sermaise Washhouse loop from Sermaise is a moderate 8.9 km circular trail that takes you through charming rural landscapes.
The region's varied terrain includes many paths suitable for families. Look for routes that pass through the wooded park of the Château de Boissy-le-Sec or along the flatter sections of the Beauce plains. These often provide a pleasant and accessible environment for a family run or walk.
Absolutely! Many routes offer opportunities to see historical and natural landmarks. You might pass by impressive castles such as Villeconin Castle or Château de Dourdan. Natural highlights include the Butte du Puits geological site or the ancient Chêne des six frères. These points of interest add a cultural and scenic dimension to your run.
Yes, for those seeking longer runs, there are several options. The Château de Boissy-le-Sec loop from Boissy-le-Sec is a moderate 14.3 km trail, offering a substantial distance through varied landscapes. Many routes can also be combined to create even longer running experiences.
While Boissy-Le-Sec is a rural commune, some routes may be accessible from nearby villages that have limited public transport connections. However, for maximum flexibility and access to various trailheads, it is generally recommended to travel by car. Parking is often available near churches or village centers.
The varied topography of the region, particularly where the plains meet the hills of Hurepoix and the Renarde Valley, provides several elevated spots. Keep an eye out for routes that traverse higher ground, such as those near the View of Butte du Puits, which can offer expansive views of the surrounding countryside.
While there are no major rivers or waterfalls directly mentioned, the Renarde Valley is a significant natural asset that often features small streams or wetlands, especially during wetter seasons. Routes through this classified site may offer pleasant views of these natural water elements.
Many outdoor trails in rural areas like Boissy-Le-Sec are generally dog-friendly, especially if your dog is well-behaved and kept on a leash. When running through agricultural lands or near livestock, it's particularly important to keep your dog under control. Always check local signage for any specific restrictions in protected areas like the Renarde Valley or private parklands.


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