Lakes around Redueña primarily consist of significant reservoirs in the surrounding region of the Community of Madrid, serving as popular aquatic destinations. These artificial lakes provide opportunities for waterside recreation and natural beauty near Redueña. The area offers a variety of features and activities for visitors seeking outdoor engagement. These reservoirs are integral to the landscape and recreational offerings of the Madrid region.
Last updated: October 7, 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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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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Built in 1972 and belonging to the Isabel II canal, the El Atazar reservoir is the largest in Madrid, housing 46% of the community's impounded water. Located in a rugged enclave full of slate, the landscape that surrounds the reservoir and that is born from its waters is spectacular, giving way to monumental natural routes and walks through its surrounding historic towns.
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Built in 1972 and belonging to the Isabel II canal, the El Atazar reservoir is the largest in Madrid, representing 46% of the community's embalmed water. Located in a rugged enclave full of slate, the landscape that surrounds the reservoir and that is born from its waters is spectacular, giving way to monumental natural routes and walks through its surrounding historical towns.
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The most popular spots include the Pedrezuela Reservoir, known as a quiet place for relaxation, and the picturesque Hervidero Waterfall, which features a small lake with crystalline water. Visitors also appreciate Laguna de Merodio, which transforms beautifully with the seasons, and the expansive El Atazar Reservoir, the largest in Madrid.
Yes, several spots are great for families. The Hervidero Waterfall is ideal for families, offering crystalline water and a small lake perfect for a snack stop. The Pedrezuela Reservoir and El Atazar Reservoir are also tagged as family-friendly, providing ample space for walks and enjoying nature.
The area around Redueña's lakes offers a variety of outdoor activities. You can explore numerous trails for running, cycling, and mountain biking. For running enthusiasts, there are routes like the 'Cancho de la Cabeza Summit' loop. Cyclists can enjoy road cycling routes such as the 'Canencia Pass' loop, while mountain bikers have options like the 'Cascada del Cancho – View of the Pedrezuela Reservoir' loop. You can find more details on these activities and routes in the dedicated guides for Running Trails around Redueña, Road Cycling Routes around Redueña, and MTB Trails around Redueña.
The best time to visit depends on your preferences. Spring is particularly beautiful, especially at Laguna de Merodio, when white flowers bloom and frogs are active. Generally, spring and autumn offer pleasant temperatures for outdoor activities. Summer is great for water-based activities at reservoirs like San Juan, while winter can offer a quiet, serene experience, though some areas might be less accessible.
Absolutely. The Hervidero Waterfall is a notable natural feature with its crystalline water flowing between siliceous rock. The El Atazar Reservoir, set in a rugged, slate-filled enclave, offers spectacular landscapes and monumental natural routes. Additionally, the Santillana Reservoir is known for its incredible sunsets and sunrises, providing excellent views of Manzanares and its castle.
Yes, the Pedrezuela Reservoir is specifically highlighted as a quiet place to relax. Its tranquil atmosphere makes it perfect for unwinding and enjoying the natural surroundings. The larger El Atazar Reservoir also offers serene spots for leisurely walks and picnics.
The Hervidero Waterfall is special for its crystalline water flowing between unique siliceous rock formations. It creates a beautiful site with a small lake, ideal for families to disconnect and enjoy a snack in the shade. Its water flow depends on an upstream reservoir, ensuring it's often active.
The Pedrezuela Reservoir, completed in 1967, was built by the Canal de Isabel II primarily for the water supply to Madrid, utilizing the regulated waters of the Guadalix River. It's also recognized as a peaceful spot for relaxation and strolls in the Sierra Norte de Madrid.
When visiting Laguna de Merodio, it's worth noting that its appearance changes significantly with the seasons. It's particularly beautiful in spring, when it's full of white flowers and frogs. Visitors are advised to avoid hunting season in the area.
Visitors frequently enjoy the natural beauty and tranquility of the area. The komoot community has shared over 230 photos and given more than 300 upvotes, highlighting the picturesque landscapes, the opportunity for relaxation, and the diverse outdoor activities available. Many appreciate the unique features of spots like the Hervidero Waterfall and the seasonal charm of Laguna de Merodio.
While the guide focuses on specific highlights, the wider region of Madrid, including reservoirs like Lake San Juan, is known for offering water-based activities such as boating, kayaking, and fishing. The El Atazar Reservoir also provides opportunities for activities like paddleboarding and boating.
While specific public transport details for each lake are not provided, the reservoirs are generally accessible by car, with parking available at popular spots. For detailed public transport options to Redueña and surrounding areas, it's advisable to check local bus routes to Redueña, Madrid, as these artificial lakes are integral to the landscape and recreational offerings of the Madrid region.


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