Ablis walks

This route is the third of the four sections of the Chemin Charles Péguy. It follows in the footsteps of the poet Charles Péguy, who made two pilgrimages to Chartres (in 1912 and 1913, each lasting four days there and back), celebrated in a poem that has gone down in history. The route alternates between the landscapes of the Beauce region and other, more hilly and charming landscapes that you might not expect.

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.

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.

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

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

The last section, from Pont sous Gallardon to Chartres, is the highlight of the route. The Beauce plain appears flat, but its many undulations reveal and conceal the spires and nave of the cathedral in turn. The Chemin Charles Péguy was created by the Amitié Charles Péguy with the cooperation of all the municipalities crossed and the support of the Eure-et-Loir Departmental Council.

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 route mainly through forest, with some remarkable trees and a beautiful pond, and a heritage detour through the hamlet of Loireux.

A loop with several faces... You start along a river and a pond. You then climb up a path to cross a section of the Rambouillet Forest where there are some remarkable trees. You finish through reeds and along a pond.

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 circular walk offering a variety of stunning scenery along an easy route with little elevation gain. You’ll discover the Etangs de la Tour, d’Or and du Perray, the vast green spaces that dominate the landscape alongside the Rambouillet National Forest, and finish with a visit to the château. 18/05/2026: Route modified between points 5 and 6 following advice.

A loop west of Rambouillet, alternating between forest and cultivated fields. Several passages along two charming rivers, the Guéville and the Drouette.

A lovely woodland walk with a cultural touch.

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.

Discover Dourdan and its national forest.

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.

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.

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 long tour starting from Saint-Hilarion that will take you to Raizeux through fields and forests, then to Épernon, which you will cross before following the Drouette river along a small, intimate path, and finally back up to Saint-Hilarion.

A beautiful walk through fields and woodland starting from Gazeran church, offering the chance to see hares, deer and even wallabies. Few elevation changes and well-marked trails; lots of wildlife. Please note that some sections may be very muddy after rain. Updated: December 2023 *

A circular route through the Rambouillet National Forest starting from Gazeran and around Poigny-la-Forêt. Return via the Étang de Coupe-Gorge and Rambouillet Park.

A south-north crossing of the Rambouillet and Quatre Piliers forests, from station to station! The route, mainly through forest, is long and requires a good sense of direction for the first half. Several ponds and remarkable trees line the route.

The Rambouillet Forest is one of the largest forests in the Paris region. This section ofthe GR®®1 trailallows you to explore the western part of the forest. It is full of charm and features remarkable sites such as the Chêne de la Pocqueterie oak tree, the Rochers d'Angennes rocks and the Pierre Ardoue stone. The route starts in a town with great cultural potential, including the Château de Rambouillet, the Hermitage, the Laiterie de la Reine and the Chaumière aux Coquillages.

A pleasant little walk to explore the Rambouillet Castle Park and the Bergerie.A walk that allows you to visit either the Bergerie or the Museum located in the Palais du Roi de Rome.

A pleasant short walk to explore the surroundings of Rambouillet Castle, its park and gardens, as well as other sites to visit such as the Bergerie. A walk that can easily be combined with sightseeing for the whole family. Please note: Before setting off, check the opening hours of the Rambouillet Castle park, as they may vary depending on the season. Moderator's note, October 2021: Bergerie closed, see comments at the bottom of this page

On the outskirts of the Paris region, let yourself be surprised by the bucolic and relaxing landscape of the Drouette Valley. After strolling through the grazing meadows, don't leave without visiting the Millstones and Cobblestones Museum, a testament to Épernon's economic appeal.

Hike through the woods and pretty little villages.

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.