Guyancourt walks

The upstream part of this series of three hikes devoted to the Bièvre river. A very pleasant walk along the river and its bodies of water, in a mostly rural setting. A hike from station to station, which can be used to adjust the length depending on the weather conditions or desires of the hikers.

A green loop around the ponds of Moulin à Renard, La Minière, Val d'Or and La Geneste in the Bièvre valley, with an optional detour to admire the Arcades de Buc.

An unsuspected corner of wild nature, just twenty kilometres from Paris. In the Parc Départemental des Côtes de Montbron, the Ru de Saint-Marc and three ponds are home to a variety of flora and numerous birds. A short walk for nature lovers! 15/11/2024: A landslide has been reported just past the point (6) and it seems impossible to get through at the moment.

In the footsteps of Jean Racine, in places steeped in history. A walk through a variety of environments, between forests, meadows and cultivated fields, with a lovely view of the ancient Abbey of Port-Royal des Champs.

A hike which is mostly in the forest, with lovely sections along the Mérantaise river and the ditches which run down from the Saclay Plateau.

The first part of this walk alternates between woodland and fields. The return journey is through undergrowth, along the former railway line that used to link Saint-Rémy-lès-Chevreuse and Limours.

This hike will take you from castle to castle in the Chevreuse Valley: Coubertin, Méridon, Breteuil, Dampierre and La Madeleine. You will also discover Chevreuse, its small bridges and its Saint-Martin Church (with its remarkable ambulatory) and the surrounding countryside. The hike can start from Chevreuse or from the RER B station at Saint-Rémy-les-Chevreuse (departure and return details in italics). In this case, add 2 km to the length of the hike.

A beautiful hike to discover the beautiful sights of the Chevreuse valley: the Chatillonmill, the castle of Dampierre, the blacksmith’s, the villages of Fourcherolles, Senlisse and Choisel, Méridon castle, the village of Chevreuse and its small bridges along the Yvette, and Château de la Madeleine.

You pass by the Etang d'Ursine, a nameless pond, then the Etang du Trou aux Gants, before reaching the Chêne des Missions, a remarkable tree surrounded by pseudo-megaliths. This route starts in the Mare Adam forest park and continues through the Meudon National Forest, with a brief detour into a pretty residential area. Allow half a day for this walk.

At the heart of the Chevreuse Valley Natural Park, a hike that allows you to wander through a protected natural site with a trail laid out by the Park. In the Bois de Maincourt, one can see ancient sandstone quarries. The course of the river Yvette, which the trail follows on the way back, finally allows a patrimonial approach with old mills and old washhouses.

A walk of many faces! On forest tracks interspersed with paths through the city, you follow an old railway line with a tunnel and viaduct, finishing along the course of the river Yvette. A walk to enjoy at any time of year.

A short half-day walk. After a good walk through the woods, the route becomes more heritage-oriented with the hamlet of Vauboyen and the Maison Victor Hugo. The walk ends along the River Bièvre.

A circuit with varied landscapes, in the Verrières forest and along the Bièvre river. A breath of fresh air and greenery just a few kilometres from the capital.

Hike connecting Igny (Essonne) to the Palace of Versailles. The route follows the Bievre, and 80% of the route is on roads through forests. A calm, cool walk with scenery that will leave you with a unique souvenir.

A loop starting from Cernay-la-Ville. Head west towards Le Perray and Vieille-Église. Return via the Rambouillet Forest. 75% of the route is in the forest. Start and finish in the town centre.The circuit is almost flat (a small descent and climb towards the end), with a little road at the start and end (2 x 1.5 km) and the rest on forest paths. No technical difficulty, but it's not a leisurely ride (not suitable for families), as the paths can be very bumpy (stones, ruts, etc.) but are nevertheless often very beautiful.

In the Haute Vallée de Chevreuse Natural Park, this hike alternates between forest paths and small roads through meadows and woods, revealing a rich heritage including the Fontaine Sainte-Anne, which was a place of pilgrimage for many years.