Gaillon-sur-Montcient walks

A walk between Gaillon-sur-Montcient and Tessancourt-sur-Aubette to discover different aspects of the Vexin region, as well as the Jardin de la Douaye (Vexin flora, photo exhibitions), a perfect spot for a break along the route.

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

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.

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.

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.

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

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

A walk almost entirely through woodland, between the Montcient Valley and the Seine Valley.

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.

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

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

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

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

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.

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

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.

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.

This walk will first take you on a journey of discovery through the heritage of this district of Aubergenville and Épône, a pioneering holiday resort established in the 1920s. On the way back, you’ll follow the Mauldre and Giboin rivers to reach the ‘beach’.