Sermaise (Essonne) walks

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

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

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.

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.

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.

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

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.

Discover Dourdan and its national forest.

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 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 lovely woodland walk with a cultural touch.

40 km from Paris, an unexpected valley. It marks the transition from the Beauceron plateau to the Paris Basin: this is the Hurepoix.

On the border between Hurepoix and Beauce, this circular route alternates between paths through fields and woodland. Along the way, you will pass two villages with old churches and beautiful houses.

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.

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 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 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 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 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 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.

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

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.

During this walk, which alternates between open plains and copses, you will see the Virgin Mary, old quarries and another little surprise.

This walk from station to station leaves the Juine valley and climbs higher. After leaving the small town of Étréchy, the first part of the walk takes place mainly amongst cultivated fields. From the village of Mauchamps, the route becomes more varied and runs partly through woodland. There are several beautiful churches to see in Étréchy, Mauchamps and Torfou, not to mention the superb church of Saint-Sulpice-de-Favières, for which a detour is suggested.

A hilly route from station to station, mainly through farmland for the first two-thirds, then through more wooded areas. Beautiful churches and rural heritage can be found in the villages along the way. In Dourdan, the walk along the Orge river, the 12th-13th century church and the fortified castle provide a superb finishing touch.

Thirty-first stage of the Grand Tour of Île-de-France via the GR®11, linking Étréchy in the Juine Valley to Saint-Chéron in the Orge Valley, via the Renarde Valley. It winds its way through the Hurepoix and the southern edge of the Beauce, offering varied landscapes, from plateaus to valleys and fields to forests. It is notable for its numerous ascents and descents between plateaus and valleys.

This walk, which takes place mainly on tarmac roads, forms a transitional stage in this journey along the Juine. Passing through a few pretty villages, two old mills, a beautiful church and a geological curiosity add to the charm of this route.

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

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 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.

This loop allows you to discover the old villages of Saint-Fiacre and Auvers-Saint-Georges (in the same commune), the hillsides and the magnificent and little-known site of the Butte du Puits. Allow 16 km and 5 hours, including time spent at the site

A beautiful hike through fields and woods, with no tarmac roads or houses (or almost none). Varied landscapes, valley, woods, forest, rocks, horse stud farm, pine forest, with lovely picnic spots. A great breath of fresh air!

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.

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.

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 circular route that alternates between ascents and descents in the undergrowth, crossing a cultivated plateau and walking through a residential area. A detour allows you to visit a Neolithic polisher.

A hike that takes place on the slopes of the left bank of the Juine and on the plateau between the fields. The path through the Étréchy forest, between the boulders, is very pleasant.

A sort of roller coaster, minus the thrills, with ups and downs through woods and fields. At the end of the route, the village of Morigny-Champigny offers a pretty wooded park, a small castle and the church of an ancient abbey.

This walk from station to station allows you to discover the heights of Étampes, with a beautiful view of the town, and to hike in the pleasant setting of the Louette and Chalouette valleys. You can continue this hike by returning to the starting station (an additional 1.8 km) and take the opportunity to visit this small town, which is well worth a visit.