4.5
(90)
773
riders
23
rides
No traffic touring cycling routes around Saint-Illiers-Le-Bois traverse a tranquil rural landscape in the Yvelines department of the Île-de-France region. The area is characterized by its serene countryside, featuring expansive greenery, small stone churches, and groves. Cyclists can expect routes that navigate through agricultural lands and offer access to significant natural features like nearby forests and valleys. The terrain generally consists of gentle gradients suitable for touring, with some routes incorporating moderate climbs.
Last updated: July 4, 2026
14
riders
45.2km
03:49
430m
430m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
14
riders
40.7km
03:40
470m
470m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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15
riders
48.2km
04:12
530m
530m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
6
riders
49.7km
04:03
500m
500m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
30.4km
02:38
310m
310m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Saint-Illiers-Le-Bois
Montchauvet is a charming little village on top of a feudal hill (old houses, some remains of a wall and the castle, and an old church with a pretty Romanesque portal).
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A pretty little hamlet in the Vaucouleurs Valley. Pretty houses in the hamlet and benches for a break by the river.
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A 12th-century Templar foundation, later owned by the Order of the Hospitallers of Saint John of Jerusalem. The chapel dates from the 12th and 13th centuries. The main building, the former gatehouse, and the former sheepfold are from the 15th century.
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To discover following the path that goes beyond the small roundabout parking lot. Gallo-Roman nymphaeum organized around a spring. Pretty marble statuette, two remaining columns and a basin on this ancient sanctuary.
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Magnificent place full of history, many paths in the surrounding area
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There are over 25 dedicated no-traffic touring cycling routes around Saint-Illiers-Le-Bois listed on komoot. These routes offer a variety of distances and difficulties, perfect for exploring the tranquil countryside.
The routes around Saint-Illiers-Le-Bois generally feature a mix of paved surfaces and quiet country roads, ideal for touring bicycles. While the region is largely rural and peaceful, you can expect some gentle rolling hills. For example, the Rosny Forest loop from Bréval includes over 500 meters of elevation gain, offering a more challenging ride, while easier routes like the Tilly Castle – Lavoir de Montchauvet loop from Longnes have more modest climbs.
Yes, Saint-Illiers-Le-Bois offers several easy and moderate routes suitable for families. These routes typically follow quiet country lanes or dedicated paths, ensuring a safe and enjoyable experience away from heavy traffic. Look for routes marked as 'easy' in the guide, such as the Tilly Castle – Lavoir de Montchauvet loop from Longnes, which is just over 20 km long with minimal elevation.
The region is rich in natural beauty. You'll cycle through verdant countryside, past groves of lavender, and alongside small stone churches. Within a short distance, you can also access significant natural sites like the Vaux de Cernay and the expansive Forêt de Rambouillet, offering diverse landscapes for exploration. The Small park with lake – Neauphlette Church loop from Villiers-en-Désœuvre, for instance, takes you past a tranquil park with a lake.
The routes often pass by charming historical sites. You can visit the beautiful 17th-century Château de Tilly, with its distinctive domed towers, or stop at the historic Neauphlette Church. The Tilly Castle – Lavoir de Montchauvet loop from Longnes is a great option to see some of these landmarks.
Yes, some routes offer scenic viewpoints. For example, the Rosny Forest – Belvédère de Rolleboise loop from Bréval includes the Belvédère de Rolleboise, which provides panoramic views of the surrounding landscape, perfect for a rest stop and photo opportunity.
The spring and autumn months generally offer the most pleasant conditions for touring cycling in Saint-Illiers-Le-Bois. The weather is typically mild, and the natural scenery is at its most vibrant, with blooming flowers in spring and colorful foliage in autumn. Summer can also be enjoyable, but it's advisable to start earlier in the day to avoid the midday heat.
Many of the no-traffic touring cycling routes around Saint-Illiers-Le-Bois are designed as circular loops, allowing you to start and end at the same point without retracing your steps. Examples include the Rosny Forest loop from Bréval and the Jo – Lavoir de Montchauvet loop from Longnes, offering diverse experiences.
The no-traffic touring cycling routes in Saint-Illiers-Le-Bois are highly rated by the komoot community, with an average score of 4.6 stars. Reviewers often praise the peaceful rural setting, the well-maintained quiet roads, and the charming historical points of interest along the way, making for a relaxing and scenic cycling experience.
While Saint-Illiers-Le-Bois itself is a rural commune, public transport options to nearby towns might be available. It's recommended to check local bus or train schedules for connections to starting points like Bréval or Longnes, which are common departure points for many routes. However, direct public transport with bicycle carriage to the immediate vicinity of all routes may be limited, making car access to a starting point often the most convenient option.
For routes starting in villages like Bréval, Longnes, or Villiers-en-Désœuvre, you can typically find public parking areas within the village centers. These are usually free and provide convenient access to the start of the cycling routes. Always ensure you park responsibly and respect local signage.


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