Mount Abantos and Peguerinos Reservoir Loop

This route is considered difficult for mountain biking. It requires very good physical fitness and significant experience. You should expect technical sections, rated approximately S3-S6 on the Single Trail Scale, where you might need to dismount and push your bike.

The trail features diverse and challenging terrain. Expect rocky sections, steep ascents and descents, tight switchbacks with rock walls, and loose rocks. Some parts around Mount Abantos can be 'super chunky with chutes, rock gardens and some scary slab rolls.' A full suspension bike is highly recommended for the more extreme downhill sections.

You'll encounter excellent scenery throughout the ride. Key highlights include the Abantos Viewpoint, offering impressive panoramic views, and the La Aceña Reservoir (Embalse de Peguerinos), which you'll circle. You can also enjoy a View of the Monastery of El Escorial from certain points.

The circular route starts and ends in San Lorenzo del Escorial. While specific parking details aren't provided, San Lorenzo del Escorial is a well-known town, and you should find public parking options there to access the trailhead.

This challenging mountain biking route typically takes around 3 hours and 22 minutes to complete, covering a distance of approximately 26.2 kilometers with over 1000 meters of elevation gain.

Generally, dogs are allowed on trails in the Sierra de Guadarrama, but it's always best to keep them on a leash, especially in protected areas or when encountering wildlife or other trail users. Given the technical difficulty, ensure your dog is fit enough for such a strenuous ride.

There are no specific permits or entrance fees mentioned for mountain biking this route within the Paraje Pintoresco del Pinar de Abantos. However, always respect local regulations, stay on marked trails, and practice Leave No Trace principles to preserve the natural environment.

The Sierra de Guadarrama can experience varied weather. Spring and autumn generally offer the most pleasant temperatures for mountain biking. Summers can be hot, and winters may bring snow and ice, making some sections impassable or significantly more challenging. Always check the weather forecast before you go.

Yes, the route incorporates sections of several other trails. You'll ride parts of the [CIMA MA08] Abantos * San Lorenzo del Escorial, [CIMA MA08] Abantos * El Tomillar, Ruta Verde Guadarrama - El Escorial, Senda de los Tesoros de Abantos, and Camino de Abantos, among others.

Given the 'difficult' rating and descriptions of 'super chunky' terrain, 'rock gardens,' and 'scary slab rolls,' a full suspension mountain bike is highly recommended for this route. It will provide better comfort and control over the technical sections.

The route starts and ends in San Lorenzo del Escorial, a town with various amenities including cafes, restaurants, and shops where you can stock up on supplies or refuel after your ride. Along the trail itself, natural water sources might be available seasonally, but it's always best to carry sufficient water for the entire duration.