4.4
(156)
793
riders
94
rides
Gravel biking around Chilly-Mazarin offers a diverse landscape within the Île-de-France region. The terrain is characterized by a mix of parklands, river basins, and open agricultural fields, providing varied surfaces for exploration. The area features gentle rolling hills, with some routes including short, noticeable climbs. This environment provides suitable conditions for a range of gravel biking experiences.
Last updated: July 3, 2026
4.1
(18)
65
riders
23.6km
01:24
220m
220m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.8
(4)
18
riders
69.9km
04:12
660m
660m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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4.7
(6)
29
riders
47.9km
02:32
210m
210m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
5.0
(1)
13
riders
83.4km
04:40
610m
610m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
18
riders
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
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Difficult route if you are there to ride. I do not recommend it to cyclists other than touring cyclists.
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In the middle of the forest stands a magnificent and imposing oak tree; you can't see a taller tree for miles around.
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The crêperie, the lakeside chalet, serves excellent crêpes and boasts a magnificent view. A very friendly place. It's located near the basilica in Lonpon-sur-Orge.
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Bonus tip: bring food for the ducks
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A lovely walk reminiscent of the old route of the Bievres Valley. Luckily, we avoided the extension of the A10 to the ring road! A fun route, but watch out for pedestrians and cross streets...
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Today we went on a beautiful hike near 🌞 in the Parisian forest. With an area of approximately 846 hectares in the west of the city, the Bois de Boulogne can be considered one of the two 'lungs' of Paris and the second largest green space in terms of area, after the Bois de Vincennes in the east. In October, many cyclamens bloom here along the hiking trail. A hike all the way around the lake with a visit to the island is a wonderful one. A free ferry ride is offered to get to the island. Highly recommended. We took a short break at LE CHALET DES ILES. Afterwards, we hiked a short distance on the island. Surprisingly, the heron was very friendly. I had the impression that it was expecting to be photographed 😄. It immediately struck a pose; I've never been so close to a heron before. There are always great photo opportunities along the hike, with small, babbling brooks in a very idyllic setting.
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Bois de Boulogne Paris, France The two trees (240 cm) are a gift from Swedish industry to the Parisians and symbolize love and unity. This bronze statue was inaugurated in 1994. With this donation, the investor – a Swedish industrial holding company – and the Wallenberg family acknowledge the historical significance of relations between France and Sweden. At the tip of the small island in Lake Superior, this symbol of love has become a favorite place for Parisians to rest, row, and contemplate for bird lovers. There are great places to sit and relax. The sculpture is beautiful to behold and highly recommended 👍 to visit.
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Another wonderful moment that simply takes you away 🥰. First, we took a break on a wonderful viewing bench and enjoyed the view of the Les Deux Arbes sculpture and the surrounding area 😍. It was hard for us to leave this place 😔. But the day is drawing to a close. This short hike in the Bois de Boulogne 💙 is absolutely spectacular and highly recommended.
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There are over 130 gravel bike routes available around Chilly-Mazarin, offering a wide range of options for different skill levels and preferences. You'll find everything from easy loops to more challenging, longer rides.
The region around Chilly-Mazarin is generally pleasant for gravel biking from spring through autumn. Spring offers fresh greenery, while autumn provides beautiful colors. Summers are also suitable, but it's advisable to ride earlier in the day to avoid the midday heat. Always check local weather conditions before heading out.
The gravel trails around Chilly-Mazarin feature varied surfaces, including compacted dirt, gravel paths, and some paved sections, often traversing agricultural areas and wooded sections. While elevations are generally modest, some routes include short, noticeable climbs. Conditions are usually good, but can be muddy after heavy rain, especially in wooded or riverside areas.
Yes, Chilly-Mazarin offers a good selection of easy gravel bike trails perfect for beginners. For instance, the Saulx Basin – Saulx-les-Chartreux Basin loop from Palaiseau is an easy 10-mile route with minimal elevation gain, ideal for those new to gravel biking.
Absolutely. For experienced riders seeking a longer and more challenging experience, consider the Perray Natural Park – Janvry Fountain loop from Gravigny Balizy. This difficult route spans over 46 miles (75 km) and includes significant elevation changes, offering a rewarding challenge.
Many routes around Chilly-Mazarin are accessible via public transport, particularly those starting from towns with RER train stations like Massy-Europe or Gravigny Balizy. For example, the Sceaux Castle and Gardens – Sceaux Park loop from Massy-Europe begins conveniently near the Massy-Europe RER station.
Parking is generally available in the towns and villages that serve as starting points for many routes, such as Massy, Gravigny Balizy, or Champlan. Look for public parking areas near train stations or town centers. Always check local signage for parking regulations and fees.
Yes, the region's gentle terrain and network of paths make it suitable for family outings. Easy routes like the Saulx Basin – Saulx-les-Chartreux Basin loop from Palaiseau are great for families, offering relatively flat and safe paths through scenic areas.
Many of the gravel bike routes around Chilly-Mazarin are designed as circular loops, allowing you to start and finish at the same point. Examples include the popular Saulx Basin – Bassin de Coupières loop from Gravigny Balizy and The Large Fields – Chemin Rural du Chat Noir loop from Champlan.
The trails offer diverse scenery, including historic parklands, river basins, open agricultural fields, and wooded sections. You can enjoy views of the Château de Sceaux and its gardens, or explore the tranquil landscapes of the Saulx Basin. The region provides a mix of natural beauty and cultural landmarks.
Beyond the cycling, you can explore several interesting landmarks. The Sceaux Castle and Gardens are a notable highlight. Other attractions include the historic Montlhéry Tower and the charming Templars' Bridge, offering glimpses into the region's rich history.
The gravel biking routes around Chilly-Mazarin are highly rated by the komoot community, with an average score of 4.3 stars from over 180 reviews. Riders frequently praise the diverse landscape, which combines parklands, river basins, and open fields, as well as the well-maintained network of paths that cater to various skill levels.


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