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Bonnelles

Attractions and Places To See around Bonnelles - Top 20

Best attractions and places to see around Bonnelles include a blend of natural beauty and historical landmarks. Located in the Yvelines department of France, Bonnelles offers diverse environments within the Haute Vallée de Chevreuse Regional Natural Park. Visitors can explore significant historical sites, such as castles, alongside natural features like ponds and woodlands. The area provides opportunities for outdoor activities like hiking and cycling.

Best attractions and places to see around Bonnelles

  • The most popular attractions is Côte des 17 Tournants, a climb that is appreciated by cyclists for its challenging turns. This route is known for being equally scenic whether ascending or descending.
  • Another must-see spot is La Madeleine Castle, a historical castle and viewpoint. This fortress offers an exceptional panorama over the Chevreuse valley, with free entry to its courtyard.
  • Visitors also love Fauvettes Viaduct, a bridge offering magnificent views over the valley. Originally built in 1913, this renovated structure is now used for leisure activities and provides a scenic break point.
  • Bonnelles is known for its historical castles, natural reserves, and challenging cycling routes. The region offers a variety of attractions to explore, from man-made monuments to diverse natural landscapes.
  • The attractions around Bonnelles are appreciated by the komoot community, with more than 900 upvotes and over 70 photos shared by visitors.

Last updated: July 2, 2026

Dampierre-en-Yvelines Castle

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Castle well known to cyclists for its small paved strip which wakes up before going up the 17 turns.

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Milon-la-Chapelle Wall

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The coast is quite short (about 600 meters) but it is surely one of the steepest in the Chevreuse valley. No choice to go as a dancer! Provide a suitable gear otherwise it is the guaranteed stop.
This road that crosses the forest is very little used by cars.

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La Madeleine Castle

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A truly unmissable fortress, both for its historical side and the exceptional view over the Chevreuse valley. Free entry and distribution of booklets for visiting the courtyard (the interior of the castle cannot be visited).

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Côte des 17 Tournants

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As beautiful uphill as downhill! Be careful however to remain vigilant because cyclists, bikers and motorists share the road.

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Fauvettes Viaduct

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Magnificent viewpoint over the valley surrounded by greenery, accessible by "gravel" paths (roots and stones) through the wood or by "hiking / mountain biking" trails in the valley (it will however be necessary to ascend the elevation on foot in this case).
Built in 1913 for the "Paris-Chartres" line, bombed in 1944, unused, closed, the viaduct was recently renovated for leisure. We see caving groups training there, as well as climbers who practice climbing on the pillars.

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Tips from the Community

Jean Conquer 🇫🇷🇺🇸
January 22, 2025, Château de la Madeleine

This is why the feudal lords built this castle here. This viewpoint gives us a panorama of the entire valley.

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Exode
January 12, 2025, Viaduc des Fauvettes

Great view when you are at the top of the viaduct!

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Magnificent vestige that can be seen from afar when arriving at Chevreuse.

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Nice walk. Free entry to the courtyard even on weekends.

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plan of the viewpoints of the Chevreuse valley

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Good, dry hill to climb as a dancer. Burns in your legs guaranteed if you go all out! For more advice, don’t hesitate to follow us on Komoot and Instagram @chouchou_team

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“In the valley… oh… oh… of Chevreuse… la li la la… in the valley… oh… oh… I thought I heard cyclists. »

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ideal rating for cardio

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Frequently Asked Questions

What natural features can I explore around Bonnelles?

Bonnelles is rich in natural beauty, particularly the Bonnelles Ponds Regional Nature Reserve. This reserve features woodlands, ponds, and meadows, home to diverse wetland species, dragonflies, and birds. You can also find the "Temple of Love" within the reserve, an 18th-century ornamental structure. The Haumont Woods offer varied and undulating landscapes for exploration.

Are there historical castles to visit near Bonnelles?

Yes, Bonnelles and its surroundings boast several historical castles. The Château de Bonnelles, built in the Louis XIII style, was a significant residence for the Duchess of Uzès. You can also visit La Madeleine Castle, which offers an exceptional panorama over the Chevreuse valley and free entry to its courtyard. Another notable site is Dampierre-en-Yvelines Castle, known to cyclists for its scenic approach.

What outdoor activities can I do near Bonnelles?

The area around Bonnelles is ideal for outdoor activities. Hiking is popular, with trails like the Haumont Woods circuit. Cycling is also a major draw, with the Véloscénie route passing through. For more specific routes, you can explore various cycling tours around Bonnelles, including those that pass by the Fauvettes Viaduct. Find detailed routes for different sports on the cycling guide, road cycling guide, and running guide for Bonnelles.

Are there family-friendly attractions around Bonnelles?

Yes, several attractions are suitable for families. La Madeleine Castle offers free entry to its courtyard and is a great historical site for all ages. The Fauvettes Viaduct provides magnificent views and is accessible via gravel paths, making it a pleasant spot for a family outing. The Bonnelles Ponds Regional Nature Reserve is also excellent for nature walks and wildlife spotting.

Where can I find scenic viewpoints in the Bonnelles area?

For breathtaking views, visit La Madeleine Castle, which offers an exceptional panorama over the Chevreuse valley. The Fauvettes Viaduct also provides magnificent views over the valley, surrounded by greenery. Cyclists particularly appreciate the Côte des 17 Tournants for its scenic beauty, both ascending and descending.

What is the best time to visit Bonnelles for outdoor activities?

The spring and autumn months generally offer the most pleasant weather for outdoor activities like hiking and cycling, with mild temperatures and vibrant natural scenery. Summer can also be enjoyable, especially for exploring the shaded areas of the Bonnelles Ponds Regional Nature Reserve and Haumont Woods. Always check local weather forecasts before your visit.

Are there challenging routes for experienced cyclists near Bonnelles?

Absolutely. The Côte des 17 Tournants is a well-known challenging climb appreciated by cyclists for its numerous turns and demanding ascent. Another challenging spot is the Milon-la-Chapelle Wall, a short but very steep climb through the forest, requiring suitable gearing. You can find more challenging routes in the cycling guide for Bonnelles.

What cultural events or sites are there in Bonnelles?

Beyond its natural and historical landmarks, Bonnelles also hosts cultural events. The Church of Bonnelles is known to host events such as Gospel concerts. The area's history is also reflected in structures like the ancient farriery, which is the oldest house in Bonnelles, and other architectural elements within the Bonnelles Ponds Reserve, such as the "Temple of Love" and the Saint-Symphorien fountain.

Can I find less crowded nature spots around Bonnelles?

Yes, for a more tranquil experience, explore the Bonnelles Ponds Regional Nature Reserve. While popular, its 22 hectares of woodlands and ponds offer ample space for quiet walks and wildlife observation. The Haumont Woods circuit also provides varied landscapes away from more frequented spots, perfect for a peaceful hike.

What do visitors enjoy most about the attractions around Bonnelles?

Visitors frequently praise the blend of natural beauty and historical significance. The exceptional panoramas from sites like La Madeleine Castle and the Fauvettes Viaduct are highly appreciated. Cyclists particularly enjoy the challenging yet scenic routes like the Côte des 17 Tournants. The historical context of the castles and the diverse ecosystems of the nature reserve also contribute to a rich visitor experience.

Are there any specific architectural curiosities in the Bonnelles Ponds Regional Nature Reserve?

Yes, within the Bonnelles Ponds Regional Nature Reserve, you can discover the "Temple of Love" (Le Temple d'amour), a unique structure featuring a two-arched bridge on the main island. This, along with other small architectural elements known as "fabriques" like a landing stage and culverts, reflects the 18th-century trend of ornamental garden constructions.

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