4.1
(17)
2,744
riders
7
rides
Road cycling around San Martín De Valdeiglesias features diverse landscapes within Madrid's Sierra Oeste, extending from the foothills of the Sierra de Gredos to the Sierra de Guadarrama. The region is characterized by the Alberche River and its reservoirs, San Juan and Picadas, alongside Mediterranean forests of holm oaks, cork oaks, and pine trees. Terrain gradients are generally forgiving, making the area accessible for various cycling abilities. Many routes utilize former railway lines, such as the Vía Verde del Alberche,…
Last updated: November 2, 2026
2
riders
28.0km
01:23
400m
390m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
21
riders
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

11
riders
40.9km
02:52
490m
490m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
7
riders
28.4km
01:47
280m
280m
Moderate road ride. Some segments of this route may be unpaved and difficult to ride.
8
riders
74.9km
03:46
1,150m
1,150m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
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The Alberche River is one of the main watercourses in the Sierra Oeste of Madrid, shaping landscapes of great natural value. As it passes through the area, it creates wooded riverbanks, natural beaches, and spaces of great beauty, being a key element in the environment of the routes and an ideal place to enjoy nature.
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It is a very beautiful route leaving from the campsite passing through green roads until you reach the castle
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Cadalso de los Vidrios acquired fame in the 16th and 17th centuries thanks to the fact that its glass factory supplied the royal pharmacy of the monastery of San Lorenzo de El Escorial. In the municipality there are important historical buildings, such as the Renaissance palace of Villena. This town is located at the top of the hillside, which allows you to contemplate the Alberche valley majestically.
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The Cistercian monastery of Pelayos de la Presa is the oldest monastic complex in Madrid. It dates back to the 12th century, and although it was renovated in the 15th, its abandonment after the confiscation of Mendizabal has caused its current state.
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At this point the Alberche River is crossed just below the San Juan reservoir dam. Usually the river carries a lot of water and the bed flows calmly, creating a very pleasant environment.
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San Martín de Valdeiglesias is the capital of the Sierra Oeste de Madrid, in the foothills of the Sierra de Guadarrama. It is the epicenter of a multitude of outdoor activities and among its monuments is the Coracera castle, originally from the 15th century, this medieval fortress was owned by Álvaro de Luna himself.
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There are 8 carefully curated no-traffic road cycling routes around San Martín de Valdeiglesias. These routes are designed to offer a serene cycling experience away from heavy vehicle traffic, allowing you to enjoy the region's natural beauty.
The terrain around San Martín de Valdeiglesias offers a mix of landscapes, from the foothills of the Sierra de Gredos to the Sierra de Guadarrama. While some routes feature gentle gradients, others include more challenging ascents. Most of the routes in this guide are rated as moderate, with one route considered difficult, ensuring options for various skill levels. For example, the Cadalso de los Vidrios and Cenicientos Loop is a moderate option.
You'll encounter diverse natural features and historical landmarks. Many routes wind through Mediterranean forests of holm oaks, cork oaks, and pine trees, often alongside the Alberche River and its reservoirs. Notable attractions include the scenic Picadas Reservoir and the historic 15th-century Coracera Castle. The Alberche Greenway, a repurposed railway line, also offers picturesque sections.
While all routes in this guide are rated moderate or difficult, the region's generally forgiving gradients compared to other mountainous areas make it accessible. For a less strenuous experience, consider sections of the Alberche Greenway, which are often flatter and ideal for families. The Cadalso de los Vidrios – Cenicientos Historic Center loop from Cadalso de los Vidrios is one of the shorter moderate options.
San Martín de Valdeiglesias is an excellent destination for outdoor activities throughout much of the year. Spring and autumn generally offer the most pleasant temperatures for road cycling, with comfortable weather and vibrant landscapes. Summers can be warm, especially in July and August, while winters are milder than in higher mountain areas, making cycling possible on many days.
Yes, many of the routes in this guide are circular, allowing you to start and end at the same point. For instance, the Cadalso de los Vidrios loop from Cenicientos is a circular route, as is the Río Alberche – Coracera Castle loop from Navas del Rey, providing convenient options for your ride.
The no-traffic road cycling routes in this guide vary in length to suit different preferences. You'll find routes ranging from approximately 18.5 km (11.5 miles) to nearly 40 km (25 miles). For example, the Detour to Aldea en Cabo – Cenicientos Historic Center loop from Cenicientos is one of the longer options at around 39.5 km.
San Martín de Valdeiglesias and surrounding towns offer various parking options, particularly near popular starting points or attractions. Many routes are accessible from town centers or designated parking areas. The region's focus on outdoor tourism means that finding suitable access points for your cycling adventure is generally straightforward.
The komoot community highly rates the cycling experience in San Martín de Valdeiglesias, with an average score of 5.0 stars. Reviewers often praise the quiet roads, the beautiful Mediterranean forests, and the scenic views of the Alberche River and its reservoirs. The opportunity to cycle through varied landscapes away from traffic is a frequently highlighted aspect.
Yes, the region has a rich winemaking heritage. While not explicitly detailed in every route, San Martín de Valdeiglesias offers a dedicated Wine Tourism Route that allows cyclists to explore local vineyards. Additionally, the 15th-century Coracera Castle, which houses a wine shop, is a significant cultural landmark you might encounter or visit nearby.
Absolutely. San Martín de Valdeiglesias is a hub for diverse outdoor activities. After your ride, you could enjoy water sports at the San Juan Reservoir, explore hiking trails, or visit the unique Enchanted Forest. The area also offers climbing, horse riding, and cultural visits to sites like the Church of San Martín de Obispo.


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