4.6
(58)
637
riders
125
rides
Touring cycling routes around Le Tertre-Saint-Denis are situated within the Terres de Seine region, characterized by a natural setting suitable for outdoor activities. The area features varied terrain, including potential hillocks or mounds, as suggested by the name "Tertre," which can offer panoramic views. Located in the Yvelines department, the region provides access to cycling paths that traverse natural landscapes, possibly alongside the Seine River valley. This environment supports a network of routes for touring cyclists.
Last updated: July 5, 2026
14
riders
40.7km
03:40
470m
470m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
15
riders
48.2km
04:12
530m
530m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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4.5
(2)
5
riders
174km
10:28
1,080m
1,080m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
9.86km
00:36
70m
60m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4
riders
9.09km
00:33
60m
60m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Beautiful castle with a beautiful forest nearby 😉
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To visit, after having crisscrossed the various paths of the park
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View from the bottom of the Suisses lake
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Warning: Olympic black track is very tough. There is no intermediate course; there are two complete circuits, green and black, so the walking is HIGH...
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A village full of character with a rich industrial past. Visit its church and the ruins of its castle. If you're interested in Calvados, a guided tour of the Morin winery is a must.
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Swiss lake, view of the castle and picnic area
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The church still houses the bell that rang Henry IV's victory in the 1590 battle between the royal army and the Catholic League. An inscription on the chevet recalls that Saint-Martin was transformed into a temple of Reason during the French Revolution.
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a pretty little village not to be missed in the Yvelines: you wouldn't think you were in the suburbs of Paris!
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There are over 120 touring cycling routes available around Le Tertre-Saint-Denis, offering a wide variety of options for different skill levels and preferences. The komoot community has explored these routes over 600 times.
The routes around Le Tertre-Saint-Denis offer a good mix of difficulties. You'll find approximately 30 easy routes, over 60 moderate routes, and around 25 difficult routes, ensuring there's something for every cyclist.
The region is characterized by its natural setting within the Terres de Seine. You can expect varied terrain, including gentle hills and potential 'tertres' (mounds) that may offer panoramic views. Routes often traverse natural landscapes, possibly alongside the scenic Seine River valley, within the Yvelines department.
The touring cycling routes in Le Tertre-Saint-Denis are highly rated by the komoot community, with an average score of 4.5 stars from over 60 reviews. Cyclists often praise the natural settings, river valleys, and gentle hills that define the area.
Given the natural landscapes and potential for panoramic views, spring and autumn are generally ideal for touring cycling in Le Tertre-Saint-Denis. The weather is typically milder, and the scenery is vibrant, making for a pleasant experience. Summer can also be enjoyable, especially along shaded routes.
Yes, many of the touring cycling routes around Le Tertre-Saint-Denis are designed as loops. For example, you could try the Le Bourbier loop from Bréval, which is a challenging 30.5-mile (49.2 km) ride, or the more moderate Montchauvet – Château de Tilly loop from Boinvilliers, covering 15.4 miles (24.8 km).
Absolutely. For experienced touring cyclists seeking a challenge, routes like the Palace of Versailles – Castle Park loop from Bréval offer a significant test. This difficult route spans 109.1 miles (175.5 km) with substantial elevation gain. Another demanding option is the Rosny Forest – Belvédère de Rolleboise loop from Bréval, a 40.7 km route with over 470 meters of ascent.
Yes, there are easier options perfect for families or those new to touring cycling. The Montchauvet loop from Boinvilliers is an easy 9.1 km route with minimal elevation, making it a great choice for a relaxed ride.
While cycling, you can explore several notable attractions. Consider visiting the historic Donjon and Fortified Site of Montchauvet, or the impressive Château de Tilly. The Collegiate Church of Notre-Dame de Mantes-la-Jolie is also a significant historical site in the broader region.
Le Tertre-Saint-Denis is situated within the Terres de Seine region, which promotes outdoor activities. While specific establishments aren't listed in the route data, the broader Yvelines department and nearby towns will offer various options for cafes, restaurants, and accommodation to support your cycling adventures.
The Yvelines department, where Le Tertre-Saint-Denis is located, is generally supportive of cycling. For specific information on public transport options that allow bikes, it's best to check the local Transilien (regional train) or bus service websites for routes serving the area, as policies can vary.
While specific parking locations for each route are not detailed, starting points for many routes, such as Bréval or Boinvilliers, are typically small towns or villages. You can usually find public parking in these areas, often near town centers or local amenities, suitable for leaving your vehicle while you cycle.


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