Chalo-Saint-Mars walks

The route follows paths across plateaus, through forests and wetlands in the valley, along the Louette and Chalouette routes,the GRP® du Hurepoix, the platform of the former Saint-Hilaire SNCF railway line andthe GR®111. Contrast between the wide open spaces of the plateaus and the wetlands of the valley. Admire the avenue of cedars and sequoias, which are over 300 years old.

Starting from the headquarters of a former Templar commandery, this loop trail takes you to the source of the Chalouette River. The route is mostly cool and shaded, offering a glimpse of a rich heritage.

After visiting the superb Saint-Martin Church with its leaning bell tower, you walk along the Chalouette and then along the hillsides on its right bank. Passing through the villages of Chalo-Saint-Mars and Saint-Hilaire adds some beautiful touches of heritage. The return journey is mainly along a greenway, close to the Louette.

After a course of barely 5 kilometres, the Marette flows into the Juine near the charming little lake of Saclas. This hike offers a route through the wooded valleys of these two rivers and across the cultivated plateau that overlooks them.

A hike where the paths between the fields of the Beauceron plateau alternate with the woods that cover the slopes of the Éclimont valley.

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 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

Along a clear river, a short hike in the heart of the watercress capital, discovering its rich heritage.

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.

A very pleasant route that combines rural landscapes adorned with yellow when the rapeseed is in bloom and wooded, green landscapes along the Juine. And then, as you pass by, discover the watercress beds in Méréville and ride along what was once a Roman road to Saclas.

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.

Discover Dourdan and its national forest.

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.

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

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

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.

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 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 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.