4.4
(131)
11,795
riders
2
rides
No traffic road cycling routes around Colmenarejo, nestled in the foothills of the Sierra de Guadarrama, feature diverse landscapes for cyclists. The region is characterized by challenging mountain passes and significant elevation gains, alongside scenic areas around the Valmayor Reservoir. Varied ecosystems, including holm oak groves, meadows, and riparian forests, define the terrain within the Regional Park of the Middle Course of the Guadarrama River. These physical features provide a range of road cycling experiences.
Last updated: June 27, 2026
3.0
(1)
23
riders
24.7km
01:13
370m
370m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
10
riders
20.3km
01:03
330m
330m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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33
riders
66.0km
03:51
1,460m
1,460m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
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Popular around Colmenarejo
Quiet village with a fountain, all of these routes are highly recommended.
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This church began to be built in the year of the discovery of America, in 1492, and was officially completed in 1619, although it was restored in the following centuries.
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Town located at the foot of Las Machotas and the Cruz Verde port, in the vicinity of San Lorenzo de El Escorial. From the quarry located there, the granite used to build the monastery of the town located on the other side of Pico del Fraile was extracted.
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The Cruz Verde pass is a mountain pass in the Guadarrama mountain range (Central system), located at 1256 m altitude, between the municipalities of San Lorenzo de El Escorial and Robledo de Chavela (Community of Madrid, Spain). It is flanked by the elevations of Las Machotas (1466 m a.s.l.), which extend in its eastern part, and Cerro de San Benito (1626 m a.s.l.), which rises to the west.
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Very nice location
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With its 125 meters, the Cruz Verde port is one of the best known by cyclists in Madrid. You can climb three totally different slopes, both in length and difficulty. From Zarzalejo, San Lorenzo de El Escorial or Robledo de Chavela. On weekends there are many motorcycles on the course.
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With an altitude of 1,256 meters, the Cruz Verde pass is one of the lowest mountain passes in the Community of Madrid. For any of its three aspects it can be classified as a third category port. Very frequented by cyclists!
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Peralejo is a town of restaurants and cafeterias where you can rest for a while and recharge your batteries. It also has the Cañada Real Nature Center, where wild animals with injuries are treated. In the surrounding area there are birds of prey, day and night, eagles, vultures, wolves, etc.
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While Colmenarejo offers a variety of cycling experiences, this guide specifically highlights two moderate no-traffic road cycling routes. These routes are designed to provide a serene cycling experience away from heavy vehicle traffic, allowing you to enjoy the natural beauty of the area.
The no-traffic road cycling routes featured in this guide are generally considered moderate. For example, the Peralejo – Zarzalejo Village Center loop from Montemorillo and the Molino de la Hoz Reservoir loop from Av. Lazarejo - Fresno are both moderate in difficulty, offering a good balance for cyclists with some experience. While not strictly beginner, they are manageable for those looking for a pleasant ride without extreme challenges.
The routes around Colmenarejo offer diverse landscapes, from the foothills of the Sierra de Guadarrama to scenic views around the Valmayor Reservoir. You'll cycle through areas rich in holm oak groves, meadows, and riparian forests, characteristic of the Regional Park of the Middle Course of the Guadarrama River. Expect varied terrain with some elevation changes, providing both challenge and picturesque scenery.
Yes, the routes highlighted in this guide are circular. For instance, you can enjoy the Peralejo – Zarzalejo Village Center loop from Montemorillo, which takes you through charming villages and natural settings, or the Molino de la Hoz Reservoir loop from Av. Lazarejo - Fresno, offering beautiful reservoir vistas.
Along these routes, you'll encounter natural beauty and points of interest. The Molino de la Hoz Reservoir is a prominent feature on one of the loops. The wider region also offers views of the larger Valmayor Reservoir and its Dam, as well as the historic Royal Monastery of San Lorenzo de El Escorial in the vicinity, which can be seen from some viewpoints.
The Colmenarejo area is highly rated by the komoot community, with an average score of 4.4 stars. Reviewers often praise the serene, traffic-free nature of the routes, the beautiful natural surroundings, and the varied terrain that makes for an engaging ride. The combination of challenging sections and scenic views is frequently highlighted.
While the primary focus of this guide is on moderate no-traffic routes, experienced riders seeking a greater challenge can explore options like the Cruz Verde Pass – Cruz Verde Pass loop from Zarzalejo. This difficult route covers a significant distance and elevation, taking you through the Sierra de Guadarrama and over the challenging Cruz Verde Pass, offering a more intense experience.
Colmenarejo offers good cycling conditions for much of the year. Spring and autumn are generally ideal, with pleasant temperatures and vibrant natural scenery. Summer mornings and late afternoons can also be very enjoyable. Even winter can be suitable, though it's advisable to check weather conditions for potential colder temperatures or occasional precipitation, especially at higher elevations.
While the routes themselves focus on natural and traffic-free sections, they often pass near or through small villages like Zarzalejo or Peralejo, where you can typically find local cafes or establishments to refuel and rest. It's always a good idea to carry sufficient water and snacks, especially on longer rides, but opportunities for stops are usually available within reasonable distances.
Colmenarejo and the surrounding towns like Montemorillo or Galapagar, which serve as starting points for many routes, generally offer public parking facilities. It's recommended to check the specific starting point of your chosen route for the most convenient parking options. Many routes begin from accessible areas within or on the outskirts of these communities.
Colmenarejo is accessible by public transport from Madrid, making it possible to reach the area without a car. Buses connect Colmenarejo with Madrid and other nearby towns. You can plan your journey to a suitable starting point for the routes, such as Colmenarejo itself or neighboring villages, and then begin your ride from there.


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