Following the Bièvre river through Saint-Quentin-en-Yvelines in Igny
Walker 
19.30 km
+26 m
-121 m
5h 35
Moderate
Departure from Montigny-le-Bretonneux (Yvelines)
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.
Bièvre Valley - Château de Versailles
Walker 15.20 km
+249 m
-190 m
5h 05
Moderate
Departure from Igny (Essonne) (Essonne)
Hike connecting Igny (Essonne) to the Palace of Versailles. The route follows the Bievre, and 80% of the route is on roads through forests. A calm, cool walk with scenery that will leave you with a unique souvenir.
Walks near Gare d'Igny
Le Quartier Latin and Sainte-Geneviève Mountain
Walker 6.09 km
+40 m
-50 m
1h 50
Easy
Departure from Paris
Le Quartier Latin is a labyrinth of streets, each as important as the next, as there is a strong history behind. The Sainte-Geneviève Mountain is home to several prestigious schools, and the presence of numerous students adds to the atmosphere of this magnificent suburb.
From Porte Dauphine to Bercy
Walker 16.50 km
+32 m
-42 m
4h 50
Moderate
Departure from Paris
A walk through Paris exploring the Left Bank and its quartiers.
On the French Revolution routes in the heart of Paris
Walker 
5.33 km
+22 m
-21 m
1h 35
Easy
Departure from Paris
An urban circular walk in search of the French Revolution routes in two Parisian sites: the Bastille, whose capture had a very strong symbolic impact, and the Odéon suburb, where several key figures of the period lived, worked and gathered, including Marat and Danton. It's also an opportunity to discover the signs of other insurrectionary episodes (July 1830, May 1968) and a superb heritage ranging from the Gallo-Roman to the Middle Ages period.