Lakes around San Agustín Del Guadalix, a town north of Madrid, offer a variety of natural water features. The area is characterized by its tranquil reservoirs, charming lagoons, and notable waterfalls. These natural landscapes provide opportunities for exploration and connection with nature.
Last updated: October 20, 2026
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The Hervidero Waterfall is a double waterfall on the Guadalix River, nestled in a rocky canyon and surrounded by riverside vegetation. It can be reached via a flat and easy 7 km (round trip) route starting from San Agustín del Guadalix, ideal for family hikes.
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End of a semi-paved road between vegetation, with gentle climbs and beautiful views of the Pedrezuela Reservoir
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Dirt track that ends next to a watering hole for the cattle. Eye! According to a sign, some are brave so it is not advisable to cross the fences. Nice views of the swamp in the distance.
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Of great beauty and easy to access (be careful, there are some winding stairs) they are one of these little-known corners of Madrid. In the bed of the Guadalix River and almost at the mouth of its spectacular canyon, the waterfall depends on the opening of the reservoir, upstream, which guarantees water flow practically all year round.
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Very steep climb from the Guadalix Reservoir
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The rest of the trail improves after this initial climb
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The area around San Agustín Del Guadalix offers a variety of natural water features, including tranquil reservoirs like Pedrezuela Reservoir, charming lagoons such as Laguna de los Patos, and notable waterfalls like Hervidero Waterfall, which features a small pool at its base.
Yes, several spots are great for families. The Hervidero Waterfall is accessible via a flat and easy 7 km round trip route, making it suitable for family hikes. Pedrezuela Reservoir and Laguna de Merodio are also considered family-friendly.
The area offers beauty year-round. In spring, Laguna de Merodio is particularly picturesque with white flowers. Autumn brings vibrant colors to the surroundings of Hervidero Waterfall, while colder months can offer photogenic morning mist at Laguna de los Patos.
You can enjoy various outdoor activities. For hiking, consider routes like the 'Hervidero Waterfall and El Mesto Canal Trail' or the 'Route of the Aqueducts'. There are also numerous road cycling and gravel biking routes available. You can find more details on these activities in the hiking guide, road cycling guide, and gravel biking guide for San Agustín Del Guadalix.
Yes, the path to Hervidero Waterfall is a flat and easy 7 km round trip, suitable for beginners. The Pedrezuela Reservoir also offers opportunities for leisurely strolls by the water.
Laguna de los Patos, or Duck Lagoon, is known for its native flora and fauna, making it an ideal spot for wildlife observation, particularly ducks and other birds.
The Hervidero Waterfall is a double waterfall on the Guadalix River, nestled within a rocky canyon with lush riverside vegetation. Its continuous water flow, ensured by an upstream reservoir, maintains its beauty almost year-round, making it a cherished natural gem.
The Pedrezuela Reservoir is a quiet and expansive body of water completed in 1967. It offers wide-open views, with its waters often reflecting the sky, and is framed by surrounding vegetation that takes on reddish tones in autumn, with the distant Sierra de Guadarrama in the background.
Visitors appreciate the tranquility and picturesque scenery. Many enjoy the peaceful atmosphere for relaxation and photography, especially at spots like Laguna de los Patos and Pedrezuela Reservoir. The beauty and relatively easy access of Hervidero Waterfall are also highly praised, with its small lake being perfect for disconnecting.
Yes, Laguna de Merodio is particularly noted for its seasonal changes; in spring, white flowers grow, making it a spectacular sight. The surrounding area of the Hervidero Waterfall also transforms with vibrant colors during autumn.
Absolutely. The Pedrezuela Reservoir is an excellent location for a leisurely stroll, offering a serene escape and picturesque scenery. Laguna de los Patos also provides a peaceful setting for a calm walk.


Still not found your perfect lake around San Agustín Del Guadalix? Check out the guides of these regions to see even more beautiful places.