Grisy-les-Plâtres walks

A varied hike through woods and fields with two beautiful churches in Bréançon and Le Heaulme. Lovely views over vast fields of green wheat, dotted here and there with red poppies. It's a shame there's a bit too much road.

A very pleasant walk that begins along the surrounding wall of a castle beautifully set in its grounds. The walk takes you through the hamlet of Héréville with its beautiful houses and charming tranquillity. Although the route ends on a road, it is very quiet and the narrowness of the road forces cars to drive at a speed that makes them very tolerable.

Between town and countryside, this walk is mainly marked by yellow PR® markers.

A hike on the slopes of both banks of the Viosne, alternating between cultivated fields, woodland and charming villages. For about 3 kilometres, the route follows the course of an ancient Roman road, the Chaussée Jules César. There is a rich heritage to discover along the way: mills, a castle, churches, crosses, wash houses and beautiful houses.

Hike around the villages of the French Vexin in the Sausseron valley, discovering castles and manor houses.

Alternating between cultivated fields and forest edges, this hike follows the Viosne River. For a little over 2 km, the route follows the route of an ancient Roman road, the Chaussée Jules César.

A short circular walk starting from Arronville. You will pass through Hérévile and cross the Sausseron twice.

This hike through woods and fields offers beautiful views of the Viosne Valley, a small river that flows through the Vexin Français from north to south, with interesting heritage in the village of Brignancourt and a possible stop at the edge of a beautiful pond.

Pass through beautiful traditional villages, across fields and woods, via the Étang and Moulin de Vallières, ending along the Viosne.

This lovely walk takes you to a Neolithic menhir called the Pierre Frite, then to a small, well-preserved castle set in lush green surroundings. Beautiful rolling landscapes can be enjoyed throughout this hike.

This is a very pleasant walk through a varied forest, often along the edge between fields and woods. You will discover superb panoramic views of the Vexin region. Crossing Chavençon, a small village lost in the countryside, is a very enjoyable experience.

An easy and varied walk between Vexin and Picardy. The paths are very easy to follow and there are very few roads to cross. The walk starts in Cresnes, a small, quiet hamlet.

A very bucolic walk in the heights of the French Vexin, passing close to the highest point in the Ile-de-France region. A beautiful forest to cross until you reach the house that was once inhabited by Sarah Bernhardt. Return through the fields across a beautiful landscape at the edge of Picardy.

A circular route through five villages in the Vexin Regional Park, partly following the old Valmondois Marines railway line, a secondary line that closed in the 1950s but whose old stations are still visible.

A beautiful walk in the French Vexin Regional Nature Park and the Sausseron Valley

The circuit starts by taking you along the Sausseron valley, then climbs up the hillside and continues through fields. You return to Nesles via paths through the woods. The circuit also allows you to discover a unique site called the Trou à Morts.

A circular starting from Hédouville takes you through Hodan, Messelan and Frouville.

This route is rich in history and allows you to discover the heritage of Pontoise and its little-known paths.

This is the eighth stage of the Grand Tour de l'Île-de-France on the GR®11, starting from Chars station in the Val d'Oise and heading towards Bornel-Belle-Église station in the Oise, through the north-eastern part of the French Vexin and the borders of the Pays de Thelle. This stage is unique in that it runs along the border between the Val d'Oise and Oise departments, with roughly 50% of the route on each side. The proposed itinerary passes through the Buttes de Rosne, the highest natural point in Île-de-France, although it deviates slightly from the GR® for this.

A pleasant and varied hike in the heart of the French Vexin. The route begins with a circular route north of Chars, between fields, meadows and small woods. After the beautiful church of Chars, there are alternating ascents and descents on the slopes of the south bank of the Viosne. The church and old mill in Brignancourt are a heritage stop before heading up the right bank of the Viosne along the edge of a wetland.

Walk starting from Chars SNCF station passing the Château de Saint-Cyr-sur-Chars. On the way back to Chars there is a narrow pedestrian passage that starts with a staircase.

A hike from station to station with the Oise as the guiding thread. You will cross several wooded parks and follow the river for a long time, mostly on a right of way. At the end of the route, the passage through Auvers-sur-Oise is an opportunity to evoke the famous painter Vincent Van Gogh.

A circular route for a day's hike. Starting from Sagy, you will pass through Saillancourt, Villette, Condécourt, Longuesse and Vigny.