Bonnelles walks

A walk alternating between woodland and farmland, mostly on footpaths with a few sections on roads with very little traffic.

This walk from Bonnelles to Rochefort-en-Yvelines alternates between woods and meadows. You will discover the charming hamlet of La Bâte. As you climb up to Saint-Gilles Church in Rochefort, you will enjoy a magnificent view of this ancient feudal town. On the way back, you will cross the Étangs de Bonnelles Nature Reserve.

This short walk combines natural and built heritage. In the first part, you will discover Bonnelles and its old castle by following the paths that wind through the village. In the second part, you will walk through the commune's nature reserve, surrounded by wetland vegetation and two beautiful ponds.

A short walk in a beautiful forest environment, perfect for getting some fresh air in the morning or afternoon. In the heart of the forest, a remarkable tree, the Gros Chêne (Big Oak), lives up to its name.

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.

A hike in the Haute Vallée de Chevreuse Regional Nature Park, where you can play leapfrog with the Rémarde river. You will encounter old mills, two beautiful churches and an oratory dedicated toSaint Arnoult, patron saint of walkers! You will follow paths along horse pastures or the edge of woods, quiet roads, lanes and footpaths.

A very varied hike, showcasing the best features of the Hurepois, a small natural region in the south-west of the Ile-de-France. It starts with a few villages rich in heritage: churches, a castle, a keep, wash houses, etc. It continues through meadows with numerous horses. The hike ends with a very pleasant walk through the woods.

A pleasant route offering varied landscapes through the woods and fields of the Hurepoix.

A rural and wooded route in the Hurepois region, with some beautiful views from the Butte de Tous Vents or the heights of Mal Acquis.

A circular hike around Rochefort-en-Yvelines. The first circular loop goes north-west into the Bois de Rochefort and then returns to the town centre with a view of the cemetery and the Church of Saint-Gilles-et-de-l'Assomption. The second circular route goes around the village to the south and then east, reaching the Gloriette (river) before temporarily rejoining the route from the first part. The return journey is again through the Bois de Rochefort to reach the starting point at the Carrefour de Luynes. An ideal circular route in May with lily of the valley between the Fief de Belloy and the Butte de la Justice.

This route is the second of four sections of the Charles Péguy Trail: Lozère (Palaiseau) - Chartres via Dourdan. It follows in the footsteps of the poet Charles Péguy, who celebrated his two pilgrimages (made in 1912 and 1913, each lasting four days there and back) in a poem that remains famous to this day. This is the transition stage: from the valleys and rolling hills of Hurepoix to the Beauce plateau.

In the Haute Vallée de Chevreuse Natural Park, a hike mainly through forest, with a variety of tree species and ponds hidden in the fern undergrowth. The Fontaine Sainte-Anne, which was a place of pilgrimage for many years, is a pleasant spot to stop for a rest.

Hike through the woods and pretty little villages.

An alternative route to the first section of the Chemin Charles Péguy. It bypasses Limours and instead showcases the Hurepoix region. Discover the beautiful village of Forges-les-Bains and a route through stunning countryside.

This rural route will take you to Pecqueuse, where you can admire the town of Limours from the viaduct overlooking it. You will also discover the old aerotrain line, now converted into a greenway discreetly hidden under the canopy.

A loop around the Bois de Montabé, following the edge of an old railway line, a short section across fields and ending on paths and lanes. A walk to get some fresh air in the afternoon.

Starting from Le Marais, crossing La Rémarde, the Bois du Marais and L’Orge at Saint-Evroult, to Le Mesnil on the southern hillside, and returning via Sermaise to rejoin the Bois du Marais. A succession of woods, villages and the edges of farmland.

A hike on both sides of the Rémarde River, between meadows, fields and woods in the Hurepois region. There is a castle on the route and another at the start.

In the heart of the Hurepoix, a hike to discover the Château de Courson (16th-17th centuries) and the church of Saint-Maurice-Montcouronne (12th-16th centuries). A route through fields and woods, dotted with a few streams.

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.

Near Rambouillet, the Vaux de Cernay offer many pleasant routes. The one suggested here provides a good overview of the site’s variety: ponds and wetlands, a passage through a sandstone boulder field and through former quarries. This walk is enjoyable in all seasons.07/08/2023 Moderator’s note: route modified at point 2 to avoid private property.

A hike that allows you to discover centuries-old chestnut trees.

Hike along steep paths then through the narrow streets of a picturesque village.

A varied hike through beautiful old quarries, part of the village with its unique footpaths, and numerous wooded areas.

Discover Dourdan and its national forest.

A hike from station to station, crossing the Dourdan Forest, the Bois de Saint-Benoît, the Bois de Pinceloup and the southern part of the Rambouillet Forest. Several lakes adorn the route and the church of Saint-Arnoult-en-Yvelines adds a superb touch of heritage.

A hike from station to station in the upper Orge valley, following the river. Discover the rich heritage of Dourdan town centre (fortified castle, 12th-13th century church, wash houses, etc.) as well as beautiful churches along the way.

The Orge river flows through the Essonne department, first from west to east and then diagonally from south-west to north-east. This route follows the valley as closely as possible, where it is accessible by train. The route alternates between paths along the river, including a promenade in the downstream section, passages through the undergrowth, residential areas and urban routes.

A lovely woodland walk with a cultural touch.

A short half-day hike in the forest, with several ponds along the way.

From Sermaise to Roinville via the GR®1 on the southern slope of the Orge, through woods and fields and a few hamlets, then back to Sermaise via the northern slope, to the edge of the Bois du Marais.

A hike with varied landscapes. The route is mainly through the undergrowth of a beautiful forest with sections along the riverbank. 07/08/2023 Moderator's note: hike modified at point 2 to avoid private property.

A short route to discover the village and the surrounding countryside, for nature lovers. Along the way, there are several beautiful viewpoints along the Orge river and a final stop at the Chateaupers farm.

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 stage is the last of the GR®1 and is over 30 km long. It crosses the western part of the Rambouillet Forest. The entire stage is through forest, except for the crossing of Saint-Léger-en-Yvelines. The route connects two towns with a rich history: Dourdan and Rambouillet. There are many straight lines on this route, which is mainly flat. There are a few notable ponds at the end of the route, such as the Étang de la Tour and the Étang d'Or.

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 hike from station to station where you play leapfrog with the Yvette River! The route is mostly close to the river and crosses a few woods and pretty parks, including the one in the western part of the Paris-Sud University campus.

Thirty-third and penultimate stage of the Grand Tour of Île-de-France via the GR®11, almost entirely in the Yvelines department.It starts in Saint-Rémy-lès-Chevreuse and reaches Coignières after climbing up the Yvette valley and crossing the Haute Vallée de Chevreuse Regional Nature Park with its rich natural and architectural heritage, just a stone's throw from Paris and its inner suburbs.

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.

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.

Thirty-second and penultimate stage of the Grand Tour of Île-de-France via the GR®11. It starts in Saint-Chéron in the Orge Valley and ends in Saint-Rémy-lès-Chevreuse in the Yvette Valley, thus completing the crossing of the Essonne via its main valleys. After starting off towards the west, the route heads due north across the Hurepoix plateaus.

A varied route through the woods, fields and meadows of the Hurepoix, with beautiful views of the Château de Baville.

A walk from station to station in the Orge Valley, exploring two large ponds home to numerous birds. A picturesque route in the first half, which then sees the proportion of urban sections increase. Heritage sites along the way: a well-restored old mill, a few churches, a small menhir, a wash house...

A circular starting from a railway station, during which you climb and descend through woods and walk along the cultivated plateaus on both sides of the Orge valley, from where you can enjoy extensive views.

An easy walk to discover ponds, a beautiful lightning-struck tree and a beautiful viewpoint, all in the Dourdan National Forest, so the route is well shaded. The ground may be muddy in places in wet weather.

This short route alternates between forest paths and paths along fields, following a small stream called Rouillon de Valence. It ends with a return to Dampierre-en-Yvelines in front of the château and its majestic park.

A south-north crossing offering a very varied route. Sections through the forest alternate with stretches across fields. Water features are plentiful, with several rivers—the Yvette, the Marette and the Bièvre—and the Étangs de Montbrond set in their lush green surroundings. (Warning) The route is cut off at the point (12) due to works on Metro Line 18 (as of March 2026). A diversion is under consideration. Please refrain from undertaking this hike until further notice.

A hike from station to station, yo-yoing between the Yvette valley and the Saclay plateau, with a few fairly steep hills. After a mostly wooded route with some elevation, you cross Gif-sur-Yvette and then walk along a wetland area framed by two rivers. You climb back up onto the plateau, near the Paris-Saclay University campus. After visiting the old Troche quarry and walking along the edge of the plateau, you descend back into the valley.

The first part of the route follows the upper reaches of the Orge river in a very bucolic setting. The second part is on a cultivated plateau with extensive views. The end of the route is in the forest, with beautiful trees here and there.

The undergrowth is dotted with flowers in March and April and there are remarkable trees all along the route.

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.

This hike starts in Gif-sur-Yvette and takes you to the heights of the Saint-Aubin and Vallée Bonnard channels, following the Yvette river and returning via La Mérantaise, passing through the Bois d'Aigrefoin, the Saint-Aubin communal forest and the Coupières basin.

In addition to introducing you to the Domaines d'Ors nature reserve, this route is of interest because it allows you to discover the old sandstone quarries at the start of the route, which are ideal for fun activities, and the Ruisseau du Fond de la Cure at the end of the route, whose steep gradient and the sound of the torrent give the impression of a mountain trail.

A long walk through forests, ponds and the banks of the Orge river, passing through the beautiful villages of Sainte-Mesme and Saint-Martin de Bréthancourt. Includes a visit to Dourdan, which you cross via parks and walking trails along the Orge river or the old fortifications, avoiding the suburbs and their buildings.

A bucolic hike where passages through woods alternate with passages between fields. Two castles, a beautiful church and a ruined medieval tower reveal themselves along the way.

Circular route through the Saclay plateau, the woods at the edge of the plateau and the Bonnard Marsh.