Thiverval-Grignon walks

This circular hike in the Beynes forest takes you past several underground gas storage sites. You will then cross the village of Saulx-Marchais, passing by its old church and town hall before crossing the fields to reach Neauphle-le-Vieux and the Mauldre river. Return to the starting point via the Beynes forest.

A hike on the slopes of both banks of the Mauldre, a tributary of the Seine between the Plaine de Versailles and the Mantois. The route, consisting of two loops, alternates between residential areas, forests and fields. A rich heritage, partly linked to water, can be discovered along the way: an old fortified castle, old mills, a siphon bridge, farm buildings, a church, etc.

A pleasant route alternating between small villages, forest edges and wide open horizons.

A hike that alternates between forest and fields, with a small pond that is ideal for a pleasant break.

A varied hike, with a beautiful wooded route in the western part of the Forest of Marly and a stroll through the village of Feucherolles. A hike with two loops, lending itself to several variations, such as limiting yourself to the 7.5 km forest loop.

A short walk on either side of the Ru de Gally, with beautiful views of the plain and the Palace of Versailles and a rich heritage in the charming village of Rennemoulin.

A short, pleasant, rural half-day hike with some historical features.

It's a very varied walk, combining nature, culture, history, tourism and curiosities. All of which means you won't miss a mile. And if you're lucky enough to do it in good weather, you'll come home feeling like you've just been on holiday.

A short walk along the streams of the Plaine de Versailles, including the Ru de Gally, which rises in the castle grounds. The charming village of Rennemoulin boasts a chapel, a wash house and an old bridge, while the Fontaine de Maltoute is a pleasant place to stop and rest in the shade.

Starting from the village of Bazemont, rich in heritage, this is a forest loop for a good half of the route, with passages between fields and along the streams that drain them.

Around Saint-Nom-la-Bretèche station - Marly Forest, a walk in a beautiful deciduous forest. It suffered greatly from the great storm of 1999, which flattened the oak trees on the motorway like straw, but this hike has a high density of remarkable trees (oaks, hornbeams, beeches). As the Marly forest is crossed by several busy roads, this hike focuses on the quietest part. It also offers a few viewpoints.

A mainly forest route with several remarkable trees here and there. The site of the Croix Saint-Michel offers a view stretching as far as Paris. A short but fairly challenging hike, given the alternating ascents and descents (the total elevation gain is probably underestimated; allow for around 200m).

This circuit consists almost exclusively of paved forest roads, at least in part, and is closed to motor traffic. This allows you to hike in the forest without having to surf on paths full of water and mud in winter.

This route follows part ofthe GR®26 trailon the plateau above the Mauldre.

The first part of the circuit from Bures to Chapet passes through fields along farm tracks, then crosses Chapet and reaches the hamlet of Brezolles, before returning through the woods

An easy and very pleasant circuit in the Rambouillet forest, passing by the Étangs de Hollande.

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 very beautiful hike to discover the wonderful rural and natural landscape of the north-west of the Chevreuse Valley, offering a radical change of scenery from the urban and commercial area of Coignières.

A short forest hike in two stages. After a lovely view of the former Port-Royal-des-Champs Abbey, you climb up the Vallon du Rodhon on a path and trails that wind through the undergrowth. The hike then follows the wide paths of the Port-Royal Forest.

Starting from the Saint-Germain-en-Laye RER station, this loop begins on the grounds and terrace of the château, then alternates between wide forest paths and trails that wind through the undergrowth.

A short hike in the Upper Chevreuse Valley, rich in heritage and offering beautiful views of the Vallon du Pommeret and the wooded hills that surround it.

A hike from station to station that takes us to the source of the River Yvette and then up and down through the woods that frame its valley. The route crosses the Maincourt Marsh and then an area of rocky chaos. The forest trails are interspersed with villages and hamlets rich in heritage.

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 that is half rural, half woodland, allowing you to visit 11 wash houses scattered throughout the region's pretty villages, of various styles and constructions, most of them decorated with flowers, some of which are quite complex in design and/or large in size, offering clear, refreshing running water (although not drinkable), which is much appreciated when temperatures soar above 30°C. Two viewpoints over Mantes-la-Jolie and its collegiate church, and the chimneys of the Porcheville power station, which are often in view.

Loop around the source of the Yvette at Les Essarts-le-Roy.

The first part of the hike takes in many points of interest. The second part offers a route through forest and quiet country lanes. This circuit is not recommended for young children as it includes some very steep and stony paths.

On the edge of the Rambouillet National Forest, the Old Road from Nogent-le-Roy to Montfort-l'Amaury is marked by boundary stones dating from the Ancien Régime and decorated with fleurs-de-lis. This short hike, which requires a good sense of direction, starts in the heart of the forest in search of these boundary stones and ends in a rural setting.

Pond and dolmen: hike in the Rambouillet National Forest near Saint-Léger-en-Yvelines.

A former royal hunting ground, the forest of Saint-Germain-en-Laye now offers beautiful high forests with a variety of tree species. The proposed route, marked by old crosses and oratories, reflects this diversity.

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 station-to-station walk, which can also be done as a slightly shorter loop. The route is mainly woodland, using both signposted paths and little-travelled paths in the undergrowth. The Étang du Corra, a protected site, offers an interlude with beautiful views and the chance to spot many birds.

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.

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.

This magnificent route will allow you to discover the wonders of the Chevreuse Valley, passing through the Domaine de Coubertin, the Meridon Departmental Forest, the Bois du Vossery sandstone quarry, the village of Chevreuse with its shopping streets, its church, the Promenade des Petits Ponts and its medieval castle.

From the RER B station at Saint-Rémy-lès-Chevreuse, visit the 11th-century medieval castle (1030) in Chevreuse and its ramparts, with a view overlooking the Chevreuse Valley. A day of nature, sport, excitement and gastronomy awaits you.

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.