4.6
(2565)
13,373
hikers
710
hikes
Hiking around Saint-Forget offers diverse landscapes within the Haute Vallée de Chevreuse Regional Natural Park. The terrain features rolling hills, dense forests such as the Mélidala Symphonic Forest, and verdant valleys. The Yvette River flows through the scenic Vallée de Chevreuse, providing riverside paths and varied topography. Natural features like the Maincourt Reedbed contribute to the area's varied hiking experiences.
Last updated: May 20, 2026
4.8
(37)
154
hikers
19.8km
05:32
370m
370m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.6
(23)
118
hikers
29.0km
07:59
390m
390m
Hard hike. Very good fitness required. Mostly accessible paths. Sure-footedness required.

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4.2
(37)
106
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4.8
(12)
61
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
4.5
(11)
59
hikers
25.9km
07:12
470m
470m
Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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Pretty castle well glimpsed at the heart of a beautiful gravel ride between Choisel and St Rémy
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The wash houses of Chevreuse are history reborn before our eyes. Here, along with the values, there were also tanneries.
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This is why the feudal lords built this castle here. This viewpoint gives us a panorama of the entire valley.
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Here we think we are in a medieval film. Sir! A Saracen!
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The Port Royal Abbey was destroyed by the orders of Louis XIV. This Jansenist landmark had attracted the wrath of the Jesuits who were very influential at Court at the time.
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Saint-Forget and its surroundings offer a vast network of nearly 700 hiking routes. This includes a wide range of options, from easy strolls to more challenging, longer excursions, catering to various fitness levels and preferences.
The terrain around Saint-Forget is quite diverse, nestled within the Haute Vallée de Chevreuse Regional Natural Park. You can expect rolling hills, dense forests like the Mélidala Symphonic Forest, and verdant valleys. The Yvette River also provides scenic riverside paths, and unique natural features such as the Maincourt Reedbed add to the varied landscape.
Yes, Saint-Forget offers numerous easy hiking options perfect for beginners. For instance, the Maincourt Washhouse – Maincourt Reedbed loop from Dampierre-en-Yvelines is an easy 6.3 km path that explores a unique natural area and a historic washhouse.
Absolutely. For those seeking a challenge, there are several difficult and longer routes. A notable option is the La Madeleine Castle – Yvette Riverside Path loop from Saint-Lambert, which spans nearly 30 km and offers a substantial elevation gain, providing a rewarding experience for experienced hikers.
Many trails in Saint-Forget are suitable for families, especially the easier, shorter loops. These routes often pass through shaded forests and offer gentle gradients, making them enjoyable for all ages. Look for trails marked as 'easy' on komoot for the best family-friendly experiences.
Hikers can discover several captivating landmarks. The historic Château de la Madeleine offers exceptional panoramic views over the Chevreuse valley. Another impressive sight is the Fauvettes Viaduct, a repurposed railway bridge providing magnificent viewpoints over the valley and forest.
Yes, the region is rich in natural beauty. You can explore the unique Maincourt Reedbed, a specific natural feature that can be explored on dedicated hiking loops. The extensive forests, such as the Mélidala Symphonic Forest, and the scenic Yvette River flowing through the Vallée de Chevreuse also provide beautiful natural settings.
The Haute Vallée de Chevreuse Regional Natural Park generally welcomes dogs, often on a leash, allowing them to accompany you on many trails. It's always a good idea to check specific trail regulations or local signage, especially in protected natural areas, to ensure a pleasant experience for everyone.
Yes, circular routes are a popular feature of hiking in Saint-Forget. Many trails are designed as loops, allowing you to start and end at the same point. An example is the Maincourt Mill Marsh – Washhouse at the Fairies' Spring loop from Lévis-Saint-Nom, which offers varied terrain in a convenient circular format.
The hiking routes in Saint-Forget are highly rated by the komoot community, with an average score of 4.6 stars from over 2,500 reviews. Hikers frequently praise the diverse landscapes, the tranquility of the dense forests, and the well-maintained paths that make exploring the Haute Vallée de Chevreuse a truly enjoyable experience.
The region's diverse landscapes, with rolling hills and dense forests, make it appealing throughout much of the year. Spring and autumn offer pleasant temperatures and vibrant scenery, while summer provides shaded trails. Even winter can be beautiful, though some paths might be muddy or require appropriate gear.
While Saint-Forget itself is a rural commune, the Haute Vallée de Chevreuse Regional Natural Park is accessible via public transport from Paris, often involving RER B to stations like Saint-Rémy-lès-Chevreuse, followed by local bus services. It's advisable to check specific bus routes and schedules to reach trailheads closest to Saint-Forget.
Parking is generally available in the villages and near popular trailheads within the Haute Vallée de Chevreuse Regional Natural Park. Specific parking areas are often indicated on detailed trail maps or in komoot tour descriptions. It's recommended to arrive early during peak seasons to secure a spot.


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