5.0
(4)
133
riders
10
rides
Gravel biking around Embalse de la Aceña offers diverse terrain within the Sierra de Guadarrama National Park, characterized by its reservoir, surrounding pine forests, and mountainous landscapes. The region provides a network of unpaved roads and forest tracks suitable for gravel bikes, allowing for exploration away from traffic. These routes traverse varied elevations, from the tranquil reservoir shores to higher mountain passes, providing a range of experiences for different skill levels.
Last updated: June 29, 2026
24
riders
53.2km
04:06
440m
440m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
12
riders
64.6km
05:19
1,400m
1,400m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(2)
13
riders
28.6km
02:10
220m
220m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
16
riders
55.0km
04:19
1,460m
1,460m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
89.9km
06:45
1,190m
1,190m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Embalse de la Aceña
Key Facts: Cela Sundial Location: It is located in the Pradera de Navarrulaque (Cercedilla), at an altitude of about 1,670 meters, right on the Carretera de la República. History: Inaugurated in 1995, it is a tribute to the writer (a great lover of the mountains and author of Cuadernos del Guadarrama) and to the first hikers who traversed these mountains. Curiosity: It is an analemmatic sundial. This means it does not have a fixed needle; you are the clock yourself. You have to stand on the current date marked on the ground, and your own shadow will indicate the time on the stone pieces surrounding you. Surroundings: It is on a beautiful route that passes by the Ducha de los Alemanes and the Miradores de los Poetas. I love this sundial in honor of Cela. It's super original because you interact with it to know the time. It's in a privileged spot in the Sierra de Cercedilla, surrounded by pine trees and with a lot of peace. A "rural monument" with a lot of charm that I never tire of visiting on my hikes through the Valle de la Fuenfría.
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Paths and cattle trails very suitable for cycling.
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Paths and cattle trails very suitable for bike rides.
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The Monastery of El Escorial was built by King Philip II in the 16th century to commemorate a military victory and serve as a royal pantheon for the Habsburg dynasty. Designed by architects Juan Bautista de Toledo and Juan de Herrera, it is characterized by its sober, Renaissance style. Today it is a UNESCO World Heritage Site.
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Place to rest and refill your water bottle at the fountain.
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Track to Las Zetas closed due to fallen trees (04/24/25)
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Excellent views of the Sierra de Guadarrama and a good place to take photos.
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Beautiful hermitage on the outskirts of Collado Villalba and Galapagar, which can be reached by taking a walk.
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Our guide features 8 carefully selected routes that offer a no-traffic gravel biking experience around Embalse de la Aceña. These routes range from moderate to difficult, ensuring a quiet ride through the stunning landscapes of the Sierra de Guadarrama.
The terrain around Embalse de la Aceña is diverse, typical of the Sierra de Guadarrama National Park. You'll encounter a mix of unpaved roads, forest tracks, and some rockier paths, perfect for gravel bikes. Expect scenic climbs and descents, often surrounded by pine forests and offering views of the reservoir and mountains.
Absolutely. The region is known for its beautiful natural landscapes, including the reservoir itself, which is one of the highest-altitude reservoirs managed by Canal de Isabel II. Many routes offer panoramic views of the surrounding mountains and the 'sea of pines'. While specific highlights aren't listed in the routes provided, the entire area is a natural landmark.
The town of Peguerinos, situated at the foot of Embalse de la Aceña, is a good starting point and likely offers parking options. For specific routes, it's always recommended to check the tour details on komoot for designated parking areas near the trailhead.
While the region is somewhat remote, public transport options to nearby towns like Peguerinos or El Escorial may exist. However, for direct access to trailheads, a car is often the most convenient option. It's advisable to research local bus or train services to Peguerinos or surrounding areas for the most up-to-date information.
Spring and autumn generally offer the most pleasant conditions for gravel biking in the Sierra de Guadarrama, with mild temperatures and vibrant scenery. Summer can be warm, especially at lower elevations, while winter may bring snow to higher parts of the park, making some trails more challenging or inaccessible.
The area offers a mix of difficulties. While some trails might be suitable for older children or experienced family riders, many routes are rated moderate to difficult. For dogs, the Sierra de Guadarrama National Park has specific rules regarding pets; generally, dogs are allowed on trails but must be kept on a leash. The reservoir itself allows swimming for visitors and their dogs.
Yes, the nearby town of Peguerinos offers amenities such as cafes and restaurants. For accommodation, you can find options like hotels and guesthouses in Peguerinos and the surrounding areas, providing convenient bases for your gravel biking adventures.
As Embalse de la Aceña is within or adjacent to the Sierra de Guadarrama National Park, it's important to be aware of park regulations. Generally, cycling is permitted on marked trails and forest tracks, but off-trail riding is prohibited to protect the natural environment. Always stay on designated paths and respect local signage. No specific permits for general cycling are usually required, but always check the official park website for the latest rules.
Yes, several routes in the area are designed as loops, allowing you to start and finish at the same point. For example, the Guadarrama River Bridge – Casa de Oficios del Campillo loop from San Lorenzo de El Escorial offers a moderate circular experience. Another option is the Valmayor Reservoir – The Seven Gates loop from El Escorial, providing a longer, moderate ride.
While the guide primarily features moderate to difficult routes, the overall area around Embalse de la Aceña does offer diverse terrain. For beginners, it's recommended to look for shorter, less elevated sections of forest tracks or unpaved roads outside of the main challenging tours. Always check the difficulty rating and elevation profile on komoot before setting out.
Experienced gravel bikers will find plenty of challenging options. Routes like the Puerto de Malagón – Abantos Summit Sign loop from El Escorial, with significant elevation gain over 64 km, offer a demanding ride. Another challenging option is the Seven Gates – The Seven Gates loop from El Escorial, covering over 63 km with substantial climbing.


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