Refine your search for walks in Drouette (rivière)
From Le Perray to Rambouillet via ponds, ditches and the Drouette river

A hike from station to station with a water theme! In the Parc Naturel de la Haute Vallée de Chevreuse and then in the Forêt de Rambouillet, a pleasant route, mostly shaded, along ponds, small canals and a charming river, the Drouette.
West of Cernay in the Upper Chevreuse Valley
A loop starting from Cernay-la-Ville. Head west towards Le Perray and Vieille-Église. Return via the Rambouillet Forest. 75% of the route is in the forest. Start and finish in the town centre.The circuit is almost flat (a small descent and climb towards the end), with a little road at the start and end (2 x 1.5 km) and the rest on forest paths. No technical difficulty, but it's not a leisurely ride (not suitable for families), as the paths can be very bumpy (stones, ruts, etc.) but are nevertheless often very beautiful.
Walks near Drouette (rivière)
Follow the Yvette from Essarts-le-Roi to Saint-Rémy-lès-Chevreuse

A hike from station to station that takes us to the source of the River Yvette and then up and down through the woods that frame its valley. The route crosses the Maincourt Marsh and then an area of rocky chaos. The forest trails are interspersed with villages and hamlets rich in heritage.
Following the Bièvre river through Saint-Quentin-en-Yvelines in Igny

The upstream part of this series of three hikes devoted to the Bièvre river. A very pleasant walk along the river and its bodies of water, in a mostly rural setting. A hike from station to station, which can be used to adjust the length depending on the weather conditions or desires of the hikers.