Vestiges du Château de Retz walks

A hike from station to station that crosses the Marly National Forest and then the Tailles d'Herbelay Departmental Forest. It then offers a visit to the charming town centre of Chambourcy and a short walk in the Saint-Germain-en-Laye National Forest. The route ends in Poissy, where you can admire the Collegiate Church of Notre-Dame and the remains of the Old Bridge over the Seine.

A hike from station to station, most of which takes place in the Forest of Saint-Germain-en-Laye, which we cross from south-west to north-east. It is an opportunity to walk through forests of various species and to come across two ancient crosses and two oratories. The route ends with a water theme, at the confluence of the Seine and the Oise.

From station to station through the Forest of Saint-Germain-en-Laye with a short detour through the historic centre of the village of Mesnil-le-Roi. Arrival in Conflans-Sainte-Honorine, capital of inland waterway transport.

A hike from station to station, crossing the southern part of the Saint-Germain-en-Laye national forest. The start and end of the route are in urban areas. In Poissy, the Collégiale Notre-Dame offers a superb touch of heritage.

A hike from station to station that runs mainly along the Seine, mostly on well-marked footpaths.

A mainly forest route despite its proximity to Paris! After crossing the Bois de Louveciennes, you can enjoy the Parc de Marly, with its views and ponds. The route ends in the Marly National Forest, with a winding path at first, then a wide, straight path.

A hike from station to station that crosses the entire eastern part of the Saint-Germain-en-Laye National Forest. A few crosses and oratories mark this forest trail. The route ends in Saint-Germain-en-Laye, where you can admire its castle, built in the 12th century.

A fairly easy walk from station to station, the first part of which is through woodland where you can admire superb specimens of various species of deciduous trees, particularly beeches and oaks, which are certainly over a hundred years old. You also pass close to the Alluets-le-Roi telecommunications centre and its many antennas of all types.The second part, which is more varied, includes a visit to the ruins of Abbecourt Abbey and the centres of the villages of Orgeval and Villennes-sur-Seine with their churches. The walk ends with a pleasant stroll along the banks of the Seine.

A station-to-station walk, which can also be done as a slightly shorter loop. The route is mainly woodland, using both signposted paths and little-travelled paths in the undergrowth. The Étang du Corra, a protected site, offers an interlude with beautiful views and the chance to spot many birds.

This is the third stage of the GR® 11 Grand Tour of Île-de-France. It continues through the Yvelines, between Saint-Cyr station and Villiers-Neauphle-Pontchartrain station. This stage completes the 'radial' part of the GR® starting from Paris and joins the circular loop that circles the region from Villiers-Saint-Frédéric. The route passes through increasingly large wooded areas as you approach the countryside.