Théméricourt walks

A circular route in the French Vexin, mainly through fields. Starting from the church in Vigny, the route passes through the villages of Sagy and Longuesse, each with their own church.

A loop starting from Vigny via Théméricourt and Avernes.

This mainly forest hike will take you to the Galluis Regional Forest, then on to the village of Frémainville, where you will discover some interesting heritage sites. It is best to do this walk during the dry season.

An easy loop around Commeny via Le Perchay and the Chaussée Jules César.

The French Vexin region has numerous megalithic sites dating from the late third millennium B.C. This walk gives you the chance to visit a dolmen in a perfect state of preservation. As you stroll through the fields and woods, you will also be able to see some lovely churches and castles.

This walk will take you along streams and through countryside, valleys and paths to discover the heritage of three charming villages. Beautiful views are also on the menu for this walk.

A hike in the heart of the Vexin Regional Nature Park.

A circular route which, on the outward journey, follows theGR®1from Us to Bréançon via Marines, a village in the Vexin region. The return to Us allows you to explore Cormeilles-en-Vexin and cross the Viosne, a tributary of the Oise, once again.

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 loop starting from the National Scout Centre in Jambville. The very hilly route is marked in yellow.

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

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

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.

Whilst the Morval Departmental Forest is well known to walkers, the village of Banthelu lies off the usual routes. But this little village is well worth a detour, if only for its history, as is Cléry-en-Vexin, which you also pass through before discovering the covered walkway of Bois Couturier.

Discover three pretty villages in the French Vexin region with beautiful churches, a stunning castle and varied landscapes of fields, sunny hillsides and even pine forests.

The walk takes you through a string of pretty villages, each with its own church boasting distinctive architecture and, for the most part, also home to a castle, the most remarkable of which are those at Guiry-en-Vexin, Théméricourt and Viry. There are also several museums along the route: the Archaeological Museum, the Tools Museum, the Harvest Museum and the Maison du Parc.It is also an opportunity to admire the open landscapes of this very hilly French Vexin region, where fields, meadows and forests intermingle. The calcareous meadows are particularly striking in spring due to the abundance of flowers found there.

A short hike in the rolling landscape of the French Vexin, among woods, fields and meadows that are home to many horses.

This short, undulating walk will take you through woods, fields and meadows to discover two charming villages in the French Vexin and their heritage attractions. Peace and tranquillity await!

A water-themed hike: from the meanders of the Aubette to the springs that enliven the Vexin region.

A walk through the woods and plains of the French Vexin, to admire the banks of the Seine and Île Verte.

This is a route for walkers who enjoy charming, forgotten little paths that make you forget you’re only 50 km from Paris; however, the route is sometimes unclear, requiring careful attention (Visorando app recommended). These paths are not always regularly maintained: bare legs are not recommended.

At the southern edge of the French Vexin, a loop that starts along the Montcient river, with the old Moulin Brûlé, and then alternates between ascents and descents in the woods or between fields.

In the southern French Vexin region, this circuit takes you through fields and woods, playing leapfrog with the River Montcient. The Cave aux Fées, a covered passage dating from 2500 BC, bears witness to ancient human occupation. A dovecote, an old water mill and several wash houses are also worth seeing.

Hike through the fields and woods near Oinville-sur-Montcient. There are a few hills during this walk.

A mainly forest route which, as it winds its way through villages, passes no fewer than four castles dating from the 15th to the 18th centuries.

Come and explore the paths and forests on a circular hike that starts in Marines and passes through Neuilly-en-Vexin, Chavençon, Les Buttes du Rosne, Le Heaulme and Le Rosnel.

This walk retraces the Battle of Vexin at the end of August 1944 thanks to the numerous explanatory panels placed along the route.

Starting from the charming village of Brueil en Vexin, you will pass La Cave aux Fées, a Neolithic burial site dating from around 2000 BCE. Then, through a varied, hilly landscape, you will discover a few hamlets and a village with its wash house and old bridge.

A long hike from station to station that veers away from the Seine Valley (which is not particularly suitable for hiking in this area) and climbs to higher ground. The route alternates between wooded sections and stretches through fields with sweeping views. There is a wealth of heritage to discover, with two beautiful Romanesque churches in the first part and, towards the end and as a grand finale, the Gothic Collegiate Church of Mantes-la-Jolie.

A lovely walk along the banks of the Seine, passing through pretty villages such as Evecquemont. The starting point and finishing point are two stations on the same SNCF line.

A long hike from station to station, alternating between the banks of the Seine, forests, fields, towns and villages, offering numerous views of the Seine and the French Vexin. The route, dotted with historical landmarks, also serves as a reminder that heavy fighting took place in the region in August 1944.

A very pleasant route in the Vexin countryside with, along the way, three beautiful medieval churches featuring Romanesque and Gothic elements.

This walk can be started from Meulan-Hardricourt station and follows marked paths for a good part of the way, even if they are not always easy to identify, particularly the access tothe GR® 2. During this walk, you can see the church of Hardricourt, pass through fields, see La Défense, enjoy the undergrowth, admire the pretty village of Mézy-sur-Seine and, if you are feeling adventurous, dip your feet in the water (in summer) and enjoy the banks of the Seine. Please note that in cold weather, some sections of the forest may be muddy and difficult to walk on.

A short hike starting from Nucourt, in the French Vexin region. At the start of this route, you will pass close (100m) to the church of Nucourt, which is unusual in that it is not located in the centre of the village.

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.

Half urban, half rural route to discover old Meulan-en-Yvelines and the views over the Aubette and Seine valleys.

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 mountain bike ride of around 25km, passing through fields, woods and pretty villages along the Viosne and Couleuvre rivers (Santeuil, Brignancourt, Le Perchay, Ableiges). A lovely spot for a break halfway along the route at the Étang de la Vallière for a picnic. No major difficulties to speak of, apart from a short path through the woods near Santeuil and a return route via the road from Ableiges to Cormeilles (though other options are available).

An easy route, from the striking church in Nucourt to the outskirts of Magny-en-Vexin, via the old watercress beds of the Aubette.

Starting from the banks of the Seine opposite Île Verte, walk up the narrow streets and paths to Villa Paul Poiret.

A circular route which, on the outward journey, follows theGR®1from Vaux-sur-Seine to Triel-sur-Seine. On the return journey, the route passes through Chanteloup-les-Vignes. Overall, the route circles the Forêt de l'Hautil.

A circular route which, on the outward journey, follows theGR®1from Vaux-sur-Seine to Sagy. The route passes very close to the Châteaux de Villette and Vaux. Before reaching the finish, the route runs alongside the Seine for a few hundred metres.

The walk begins with a very varied section of the GRP® "la Seine impressionniste", starting with the imposing ESA Ariane rocket factory and its loading dock, a charming marina, the Île de loisir du Val de Seine, and several very large ponds. It continues through Triel-sur-Seine, with its pleasant Parc Senet and the architecturally intricate St Martin’s Church. The walk through the Bois d’Hautil along easy yet unspoilt paths is well worth the detour for its chestnut forests dotted with a few fine oaks, and punctuated by a large number of sinkholes resulting from the collapse of underground quarries. And we finish off gently, admiring the confluence of the Oise and the Seine. ⚠️ User comment on 18 May 2026:>Please note: at point 8, the path is closed in both directions due to reported risks of collapse; instead, take the GR®2 further down to cross from east to west

A walk around Juziers that allows you to discover its heritage, a panoramic view of the valley and a pleasant return trip along a towpath on the banks of the Seine.

Circular route from Juziers station, alternating between farmland and forests. Several interesting churches (unfortunately often closed), beautiful wash houses, a fountain with its statue still intact. And of course, the beautiful covered walkway of the Mare aux Fées, which is well worth a detour.

During this varied, hilly hike, you will discover three small villages as you stroll along narrow streets and paths. You will walk along a few hillside and woodland trails, discover beautiful viewpoints and stroll along the Seine on your return.

A circular route to explore a little-known part of the French Vexin Nature Park. Passing through the Aubette Valley and the Gerville Valley, you’ll discover the Gerville Tower, the remains of a former 12th-century commandery, and the 18th-century Château de Magnitot. This route can be complemented by a stroll through the old streets of Magny-en-Vexin.

A varied walk through fields and meadows, with pretty houses in small villages and the church of Saint-Gervais adding a lovely touch of heritage.