Fontenay-lès-Briis walks

A beautiful deciduous forest. A pleasant walk on dry ground, mostly on wide paths. A very short walk, accessible to all, for a breath of fresh air in the morning or afternoon.

From the charming village centre of Janvry, a circular route to discover two 17th-century castles. A short hike through cultivated fields and woodland.

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.

The first part of the route follows a very quiet local road through horse pastures, then enters the forest along a sandy path where there are old trees, including a hollow one large enough to shelter a person. The surface is ideal if it has rained in the preceding days.

A heritage walk in a bucolic setting, in the heart of the Hurepoix. Climb the Butte de Saint-Yon and the Bois des Roches, follow the Orge and Renarde rivers, and discover the charming church of Saint-Yon and the superb church of Saint-Sulpice.

A hike starting from a railway station (with car park for motorists), the destination of which is the superb church of Saint-Sulpice-de-Favières. Along the way, you will walk through fields, meadows and woods, and the route is enhanced by pretty rivers and an old water mill.

A lovely, easy little walk that takes you along the River Orge, through two of Breuillet’s parks and offers several views of a string of ponds along the River Rémarde. A varied route with plenty of shade, easily accessible by RER.

A varied walk, combining the rich heritage of Bruyères-le-Châtel with an original route along the paths of this commune, and a path through the forest, between the fields or along a vast stretch of water.

The main aim of this walk is to reach La Roche Turpin from a station (RER C). La Roche Turpin is a magnificent natural area consisting of a sandstone plateau and its slopes, covered by a beautiful forest mainly populated by oaks (including some superb specimens), chestnut trees and Scots pines.At the start, you can enjoy the path around the Bassin de Trévoix (Retenue de l'Orge). You then make a pleasant walk through the village of Bruyères-le-Châtel via a dense network of well-maintained footpaths. Next comes the beautiful forest of Bruyères-le-Châtel (although there are long straight stretches due to fences enclosing large areas).

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.

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 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.

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.

A very short walk consisting of a circular in the forest and a circular in open terrain. Worth seeing: several remarkable trees (oak, plane trees), wetland vegetation and a small built heritage site on the theme of water.

A hike from station to station, along the Orge and its tributary, the Rémarde, as well as the Bassin de Trêvois. A small menhir and a Louis XIII-style castle add a nice touch of heritage.

A hike from station to station, mostly following the Orge river or its secondary branch, the Grande Boële, and along a few large reservoirs. There is a rich heritage to discover, in Arpajon at the start of the hike and, as a highlight, at the Basilica of Longpont.

A mainly forest route with two beautiful heritage sites: at the start, the charming church of Saint-Yon and a Gallo-Roman ruin, and halfway along the route, the superb Gothic church of Saint-Sulpice-de-Favières.

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

A varied route around Nozay, a charming village located twenty-four kilometres south-west of Paris. This hike takes you through diverse landscapes: fields, forests, and an equestrian centre. The topography is varied (flat expanses, hilly areas). Beautiful views of the village of Marcoussis.

A few kilometres from Paris, this refreshing hike takes you through the village of Leuville-sur-Orge, along a path that runs alongside the Orge river, and to the Carouge basin in Brétigny-sur-Orge.

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...

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 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.

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.

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 loop in the Chevreuse Valley, with magnificent landscapes, in a wooded and rural setting close to Paris. The first part is a walk through the woods on the plateau overlooking the Yvette Valley. The return journey, parallel to the outward route, is mainly on flat ground. Most of the walk is well shaded and flat, but there are also some fairly steep ascents and descents. The area is very popular with walkers and mountain bikers, but it is well worth a visit.

A short hike that combines urban passages, wooded and hilly trails, and a pleasant walk along the Yvette River.

Discover nature between the River Yvette and the Guyonnerie forest. A family walk where pets are welcome.

A mainly urban, relatively short route with a slight elevation gain. A few steep steps lead up to the Bois de la Troche and the rocks of its former sandstone quarry. The walk ends peacefully along the Yvette.

Discover part of the artistic, historical and scientific heritage of Paris-Saclay University: sculptures, frescoes, scientific instruments, archaeological sites, and more. An easy walk on a campus featuring a large botanical park and the neighbouring wooded hillsides.

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.

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.

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 varied hike where you gain altitude. First, you climb up to the Saclay plateau and walk along the university campus before gently descending into the Yvette valley through the forest. We climb back up the other bank and cross the Gif-sur-Yvette forest from east to west. After an urban section, we walk between fields before descending back into the forest to Saint-Rémy-lès-Chevreuse.

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.

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.

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.

Tour du Rocher de Saulx, a forest home to interesting flora and fauna to discover along the way.

This circular route offers the charm of the Lozère district with its wooded hillsides and breathtaking views over the Yvette valley. You can also stroll along the water’s edge, on the banks of Lake Lozère or along the Yvette.

In a highly urbanised environment, this is a green space where you can relax and enjoy a pleasant walk along the Yvette river and the Bassins de Saulx and Balizy. A hike from station to station with a shorter alternative for motorists.

This marked route follows as closely as possible the path taken by Charles Péguy in 1912 and then 1913 from his home in Lozère (Palaiseau) to Chartres, via Dourdan. The walking route is 94 kilometres long and is marked with blue and white signposts. The trail was created by the Amitié Charles Péguy association. It received support from the Eure-et-Loir General Council. Visorando was responsible for its first publication on the Internet.

First of the four sections of the Charles Péguy Trail: Palaiseau-Chartres, via Dourdan. It closely follows in the footsteps of the poet Charles Péguy, who made two pilgrimages in 1912 and 1913, each lasting four days there and back.

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.

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

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.

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.

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.

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.

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 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 short walk, urban at the start and finish, which, in between, combines a pleasant stroll along the River Yvette with wooded and undulating paths.

Hike in the Yvette Valley offering beautiful views of the plain with its market gardens and requiring some effort thanks to the steep wooded hillsides covered in particular by the Rocher de Saulx national forest.

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.

This route follows thePR®10and 13 trails and the Promenade de l'Yvette. It has been chosen to avoid as much as possible the busy roads crossing the Basses Roches district in Villebon. Only the crossing over the A10 motorway via the viaduct is unavoidable, but it is short (200 m) and the pavement is wide. The rest of the route is pleasant along the Promenade de l'Yvette, the paths in the plain and around the Étang de Saulx-les-Chartreux.

A very beautiful and fairly easy walk, stunning all along the Yvette, then a short steep climb on Rue des Bouleaux for 300 m and you’ll find yourself in the Gelles Departmental Forest. Overall, there’s very little walking on the road; it’s all on lovely paths, finishing around Lac de Saulx. You’ll see wild ducks and moorhens along the Yvette and also around the lake, along with swans and a few waders. If you like horses, you’ll also see several stud farms and occasionally riders. This is my Sunday jogging route.

A varied route in a peri-urban setting, along rivers and streams and the Bassin de Saulx, and in the heart of the Rocher de Saulx departmental forest. Please note! Work around the Bassin de Saulx means that the route has been changed at the end: follow the suggested alternative route.

A walk from station to station that climbs up to the Saclay plateau, offering a striking contrast between the cultivated fields criss-crossed with drainage ditches and the ever-expanding university campus. A varied route with its share of ascents and descents.

A hike from station to station that alternates between urban and forest passages. From the Yvette valley, we climb up to the Saclay plateau, where the university campus is constantly expanding. At the start of the descent, we visit an old sandstone quarry that has been converted into a climbing school.

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.

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 stage of the GR®1 is one of the most difficult on this GR®. It is 32 km long and has an elevation gain of over 400 m. It is also one of the most beautiful. Starting from Lardy, this hike takes you past magnificent monuments such as the Church of Saint-Sulpice, the Church of Saint-Yon, the Church of Sermaise and the Château de Dourdan. There are other monuments to visit in this town. Most of the route is in the countryside, with several ascents and descents into the valleys. The route passes through numerous villages of varying sizes.

A walk on the hillsides on both banks of the Juine, alternating between cultivated fields and undergrowth. You'll discover a rich heritage along the way, including a dolmen, castle, old mill, farm buildings and beautiful houses.