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France
Ile-de-France
Rambouillet

Saint-Léger-En-Yvelines

The best road cycling routes around Saint-Léger-En-Yvelines

4.6

(255)

7,432

riders

456

rides

Road cycling routes around Saint-Léger-En-Yvelines are primarily situated within the extensive Forêt de Rambouillet and near the Haute Vallée de Chevreuse Regional Nature Park. The region features dense woodlands, numerous ponds, and a mix of paved roads and varied terrain. Cyclists can expect moderate climbs and descents across a landscape that includes both serene forest paths and routes passing by historical landmarks.

Best road cycling routes around Saint-Léger-En-Yvelines

  • The most popular road cycling route is La Mormaire Castle – Neuville…

Last updated: May 14, 2026

4.6

(5)

153

riders

#1.

Anne of Brittany Tower – Vilpert Ponds loop from Montfort-l'Amaury

58.3km

02:30

380m

370m

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

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Moderate

Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.

Moderate
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Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.

Moderate

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

Easy

Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.

Moderate
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Tips from the Community

Francis
August 24, 2025, Mares de Vilpert

Great outing 👍

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No water in the pond when I was there but a beautiful meadow

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Very hidden castle in the forest of Rambouillet

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Wild... as long as the tourists aren't there.

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Small town, small church and bells on Sunday 12:00...

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At the edge of this road a pond which forms with the forest which surrounds it a protected natural area. Each year, during the thaw (roughly from February to April), a "toadstool" is installed on the road that runs along the pond. But what is a toaddrome exactly? So, it is not a place where one could indulge in clandestine bets on toad races, but a device intended to prevent these poor beasts from being crushed by cars in crossing the road to breed and lay their eggs in the pond on the other side of the road. Indeed, thousands of common toads, but also frogs and newts, begin their long prenuptial migrations around March each year. They go to the nearest pond or pond to breed. Once their duty is done, they leave the aquatic environment to return to their summering areas where they will spend most of their time feeding. In order to avoid a carnage of amphibians on the road, a tarpaulin is planted 600m on each side of the road to block their passage. In various places a hole has been made in which a bucket is buried. By looking for a passage all along the tarpaulin, the toad will inevitably end up at the bottom of a bucket. Every morning, volunteers come to collect toads and other frogs and drop them off on the other side of the road.

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At the turn of this bend in the road, you can see this magnificent castle through the trees, especially in winter when the vegetation has thinned out. The Château de Neuville, located in the heart of a forest park in Gambais, was built in the 16th century by Joachim de Bellengreville, Grand Provost of the Hôtel du Roy in charge of security and the Court police under Henri IV. Its design is attributed to Jacques Androuet du Cerceau, a famous architect to whom we owe the Louvre gallery, the Pont Neuf and the Hôtel Carnavalet in Paris. The Henri III style building has undergone many transformations over time. During the 2nd World War it was occupied by the German and then American armies, and gradually abandoned. Since the 1960s and 1970s, the family that owns the place, a descendant of the Marquis de Labriffe who acquired the château in 1795, has embarked on a long and costly restoration program which is still continuing today. To finance this work, the estate is regularly rented for film and television shoots, which is why its silhouette may seem familiar to you. Among the films shot in these places: La vie de château (JP Rappeneau), Peau d'âne (Jacques Demy), Dangerous liaisons (Stephen Frears), Cyrano de Bergerac (JP Rappeneau), Ridicule (Patrice Leconte), but also two seasons of the TV show "The Best Pastry Chef".

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Historical documents attest to the construction of the first fortifications from the year 996 on the hill known as "Montfortis". The city then became the stronghold of the Montfort family and Amaury I had the ramparts built, of which some vestiges can still be seen. At the end of the 13th century, the county of Montfort joined the Duchy of Brittany following the marriage of Yolande de Montfort with Arthur II of Brittany for an allegiance that would last two centuries. During the Hundred Years War (1337-1453), the fortified castle was destroyed by the English and all that remains of the latter are the ruins of the keep, now called Tour Anne de Bretagne, because it was built under his reign. It can be seen when arriving in the city, and climbing this road which bypasses it. Once you have reached the top of the hill, you can take the small dirt road which starts from the intersection with the road to St Léger in order to go through the park to the foot of the keep, if the few hundred meters in gravel do not don't scare you. At the foot of the keep, being 183 meters above sea level, you can contemplate the panoramic view of the town and its surroundings. It is therefore easy to understand why this mound was an ideal place to establish a fortified castle. It is a perfect place for a break after climbing.

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Frequently Asked Questions

How many road cycling routes are available around Saint-Léger-En-Yvelines?

There are over 460 road cycling routes available in the Saint-Léger-En-Yvelines area. This includes a wide range of options, with approximately 115 easy routes, 335 moderate routes, and 18 more challenging routes, catering to various skill levels.

What kind of terrain can I expect on road cycling routes around Saint-Léger-En-Yvelines?

The region offers diverse terrain, primarily within the extensive Rambouillet Forest and near the Haute Vallée de Chevreuse Regional Nature Park. You'll find dense woodlands, numerous picturesque ponds, and a mix of well-maintained paved roads. Cyclists can expect routes with moderate climbs and descents, providing a varied and engaging experience.

Are there road cycling routes suitable for families or beginners?

Yes, Saint-Léger-En-Yvelines is well-suited for families and beginners, with over 115 easy road cycling routes. These paths often utilize quiet roads and dedicated cycling paths, ensuring a safer and more enjoyable experience. Many routes are designed to be accessible for all skill levels, allowing for leisurely rides through the scenic forest and past charming ponds.

What natural attractions can I discover along the cycling routes?

The area is rich in natural beauty, particularly its numerous ponds and dense forests. You can cycle past serene water bodies like Rompu Pond, Étang de Saint-Hubert, and the Vilpert Ponds. The Guiperreux Toad Crossing is another unique natural monument you might encounter on your ride.

Are there any historical landmarks or points of interest along the road cycling routes?

Yes, many routes combine natural beauty with historical discovery. You can cycle past sites like the Neolithic Dolmen de la Pierre Ardoue within the Rambouillet Forest, or the impressive Château de Rambouillet. Routes such as La Mormaire Castle – Neuville Castle loop from Grosrouvre connect historical castles, while the Anne of Brittany Tower – Charming village Gambaiseul loop from Montfort-l'Amaury leads through historical sites and villages.

What do other road cyclists enjoy most about cycling in Saint-Léger-En-Yvelines?

The area is highly rated by the komoot community, with an average score of 4.6 stars from over 200 reviews. Cyclists often praise the absolute tranquility of the Rambouillet Forest, the well-maintained paths, and the scenic beauty of the numerous ponds. The variety of routes, from easy forest loops to those connecting historical landmarks, is also frequently highlighted.

Are there circular road cycling routes available?

Yes, many of the road cycling routes around Saint-Léger-En-Yvelines are designed as loops, offering convenient circular journeys. Examples include the popular Guiperreux Toad Crossing – Chapel and miraculous spring loop from Poigny-la-Forêt, and the Hollande Pond – Vilpert Ponds loop from Montfort-l'Amaury, which allows you to explore multiple water bodies.

What is the best time of year to go road cycling in the Yvelines region?

The Yvelines region, including Saint-Léger-En-Yvelines, is generally pleasant for cycling from spring through autumn. The dense woodlands provide shade in warmer months, and the changing foliage in autumn offers beautiful scenery. While specific permits are not typically required for cycling on public roads and marked trails, checking local weather conditions is always advisable.

Can I bring my dog on the cycling trails?

While the Rambouillet Forest is generally dog-friendly for walks, specific regulations for dogs on cycling trails can vary. It's always best to check local signage or official park guidelines regarding dogs, especially if they are off-leash, to ensure compliance and safety for all users and wildlife.

Are there options for parking when accessing road cycling routes?

Yes, many starting points for cycling routes in and around Saint-Léger-En-Yvelines, particularly near the Rambouillet Forest and villages, offer convenient parking facilities. These are often located close to trailheads or in village centers, making it easy to access the routes by car.

Can I reach the cycling routes using public transport with my bike?

The Yvelines department actively promotes cycling, and public transport options are available. While specific rules for bikes on trains or buses can vary, the region's commitment to 'green tourism' means that many areas are accessible. It's recommended to check the specific public transport provider's policy regarding bicycle carriage for your planned journey.

Are there any challenging road cycling routes for experienced cyclists?

Yes, for experienced cyclists seeking a challenge, there are 18 difficult road cycling routes available. These routes often feature more significant elevation gains and longer distances, providing a demanding yet rewarding experience through the varied terrain of the region. An example is the Croix de Vilpert Monument – La Mormaire Castle loop from Montfort-l'Amaury, which offers moderate difficulty with notable elevation.

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