4.5
(110)
695
hikers
129
hikes
Hiking around Osmoy in the Yvelines department offers accessible trails through a varied landscape. The region features a mix of fields and woods, providing a setting for walks. Hikers can expect to encounter forests, open fields, and historical lavoirs, with elevations ranging from 93 to 128 meters. Some routes integrate sections of the larger GR11 and GR22 hiking circuits.
Last updated: July 2, 2026
3.0
(1)
9
hikers
7.68km
01:59
50m
50m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
2
hikers
11.3km
02:54
50m
50m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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4.5
(2)
17
hikers
13.4km
03:32
120m
120m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
4
hikers
10.3km
02:40
70m
70m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
5.0
(1)
2
hikers
9.37km
02:25
50m
50m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
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Pond where it is very pleasant to walk in the heart of the forest of the four pillars.
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Pleasant in spring when the plants are awakening :)
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Originally, the territory had two chapels, one dedicated to Saint Martin, the other to Saint Prix, located in Elleville. In the mid-16th century, the Le Coq family settled in Corbeville and chose the nearest Saint Martin chapel to become the parish church under the name of Saint Martin of Elleville. Probably remodeled in the 16th and 17th centuries, it has an Avrais-style bell tower entirely covered in slate.
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Dating from the 18th century, it belongs to the simple type of barn church with its “Avrais” type bell tower with a slate roof.
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The watercourse cuts the path, a footbridge allows you to cross over it. On the other side, a small esplanade is reminiscent of an old washhouse.
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The church of St Germain de Paris is quite imposing. It is worth a look as well as the war memorial.
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Beautiful forest between Garancières and Bazainville with many trails, perfect for gravel or mountain biking. Don't miss the small, very wild Pimardière pond. A small path allows you to go around it.
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This village of only 400 inhabitants does not lack charm. There is the charming 18th century church-barn of Saint-Cloud; the Notre-Dame-de-la-Pitié chapel, from the 16th century; a war memorial; as well as a lovely little washhouse.
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There are over 120 hiking trails around Osmoy, offering a wide range of options for different skill levels. The komoot community has explored these routes over 650 times, providing valuable insights.
Osmoy offers a good mix of trails. You'll find approximately 40 easy routes, 75 moderate trails, and a few more challenging options for experienced hikers. This variety ensures there's something for everyone, from leisurely strolls to more demanding excursions.
Yes, Osmoy is well-suited for family outings with several easy routes. For instance, the Hiking loop from Septeuil is a 4.8 km trail through fields and woodlands, typically completed in about 1 hour 21 minutes. Another gentle option is the Étang de la Pimardière loop from Béhoust, which is just over 2 km and features minimal elevation gain.
Absolutely. Many of the trails around Osmoy are circular, allowing you to start and end at the same point. A popular moderate circular route is the Porte de Bretagne – Porte de Bretagne loop from Mantes-la-Jolie, which spans 13.6 km. For a shorter, easy option, consider the Hiking loop from Septeuil.
The region around Osmoy is rich in history and features. You can explore historical lavoirs, old chapels, and churches along many trails. Specific highlights include the Villa Landru, the Donjon and Fortified Site of Montchauvet, and the Château de Tilly. Some routes, like the Section of the Avre Aqueduct loop from Villiers-le-Mahieu, even follow historical infrastructure.
Yes, the area around Osmoy is home to several castles. You can find the Château de Tilly, Behoust Castle, and Rosay Castle. The Rosay Castle – Malowe Nature loop from Mantes-la-Jolie even incorporates a visit to Rosay Castle.
The Yvelines department, where Osmoy is located, offers pleasant hiking conditions for much of the year. Spring and autumn provide mild temperatures and beautiful scenery with blooming flowers or vibrant foliage. Summer is also suitable, though it can be warmer, while winter offers a different, often quieter, experience through the fields and woods.
The hiking experience in Osmoy is highly rated by the komoot community, with an average score of 4.4 stars from around 95 reviews. Hikers often praise the varied terrain, which includes open fields, dense woodlands, and the presence of historical features like lavoirs and old chapels, making for a diverse and engaging walk.
Yes, some of the hiking loops in Osmoy integrate sections of the larger GR11® and GR22® hiking routes. This allows for potentially longer and more varied explorations if you wish to extend your hike beyond the local trails.
The landscape around Osmoy is characterized by a pleasant mix of fields and woods. You can expect to walk through forests, across open fields, and encounter historical features like lavoirs. The terrain generally features gentle elevation changes, ranging from 93 to 128 meters in altitude.
Yes, the Section of the Avre Aqueduct loop from Villiers-le-Mahieu is a moderate 13.2 km path that specifically follows a section of the historic Avre Aqueduct, offering a unique blend of natural scenery and historical interest.


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