Best lakes in Ejes De Los Cursos Bajos De Los Ríos Manzanares Y Jarama are located within the Southeast Regional Park, a protected area in the Community of Madrid. This region features the lower and middle courses of the Manzanares and Jarama rivers, characterized by riverine plains, gypsum cliffs, and numerous wetlands. Many of these lagoons are artificial, formed from past aggregate extraction, and serve as significant ecological hotspots. The area is vital for ecosystems, particularly for avifauna, providing breeding…
Last updated: July 13, 2026
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This lagoon is artificial, created from the extraction of aggregates in the Jarama River basin during the 1960s and 1970s. It is an ideal place to enjoy nature, hike, or cycle. The lagoon's perimeter measures approximately 5.5 km, and its average depth is 6 meters, although in some areas it can reach 20 meters. It also has a natural resources interpretation center that organizes workshops and educational activities.
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The Campillo Lagoon is located in Rivas Vaciamadrid, within the Southeast Regional Park, about 20 km from Madrid. It is a protected natural area, ideal for peaceful walks and outdoor activities. Origin: Artificial, formed in the 1960s and 70s after the extraction of aggregates in the Jarama River basin. Water from the aquifer filled the excavations and over time became a wetland with great biodiversity.
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The lower basin of the Jarama River is the river axis that links the main elements of the Regional Park of the Southeast. The rich alluvial plains hide 132 artificial lagoons that are authentic distributors of exclusivity and biological diversity. The origin of these valuable wetlands is the extraction of aggregates in the open air, digging enormous holes until breaking the water table and causing the flooding of the gravel pit with water from the river basin. In a short time, the banks of these particular artificial ponds are covered with rushes, reeds, cattails, tamarisks, willows, ash trees and elms, developing leafy belts of marsh vegetation that constitute a magnificent habitat for different groups of aquatic birds, reptiles and amphibians. The gypsum cliffs are also an indispensable environmental element to delve deeper into the surprising natural wealth of the regional park and enrich the aesthetic quality of the landscape. The striking grey and whitish cliffs, with a fragile and arid appearance, are formed by large layers of marl and gypsum sediments piled up during the Miocene while large masses of water containing abundant mineral salts were evaporating. The steep and desolate appearance of these unique reliefs, together with the toxic nature of a substrate rich in calcium sulphate, conditions the development of the plant species that colonize the unstable cliffs, unique and sometimes endemic plants adapted to the demanding conditions in this exclusive geographical section of the park.
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Short but tough ramp to climb to this viewpoint
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Important wetland near Velilla where animal and plant species of all types accumulate and develop. It is a focus of life!
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Wetland full of animal and plant life where many species of all kinds develop!
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These wetlands are used by numerous species of birds as wintering areas, but what stands out above all is the diversity and high concentration of individuals during migration times.
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Path with good views, few bumps and shade in summer. Be careful on weekends when there are a lot of pedestrians.
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The region, also known as the Parque Regional del Sureste, is characterized by the lower and middle courses of the Manzanares and Jarama rivers. You'll find diverse ecosystems including riparian forests, gypsum cliffs, and numerous lagoons. Many of these lagoons are artificial, formed from former aggregate extraction sites that have been re-naturalized, creating significant ecological hotspots, especially for birdlife.
Yes, the lakes are excellent for birdwatching. For instance, Laguna del Soto de las Juntas offers refuge to a wide variety of resident and migratory bird species. The Lagunas de El Porcal complex is recognized as a Special Protection Area for Birds (ZEPA) and is part of the Natura 2000 network, boasting 206 bird species, including vulnerable ones like the red-crested pochard and kingfisher.
Many lakes offer pleasant routes. Campillo Lagoon has a full circular route perfect for walking or cycling. You can also enjoy a comfortable track next to the Lagunas de Velilla. The Laguna del Soto de las Juntas also provides easy walking and cycling routes.
Yes, several lakes are great for families. Campillo Lagoon and Laguna del Soto de las Juntas are both categorized as family-friendly. The Lagunas de Velilla also offer comfortable tracks suitable for family walks.
The area offers various outdoor activities. You can find numerous routes for gravel biking, running, and hiking. For example, there are many gravel biking routes like the 'Jarama River Irrigation Canal – Presa del Rey Trail loop' and running trails such as the 'Velilla loop'. You can explore more options on the dedicated guides for gravel biking, running, and hiking in the region.
The Lagunas de El Porcal complex is the most extensive group of lagoons in the Community of Madrid. These artificial lagoons, formed from former gravel extraction sites, have been successfully restored and are now a significant wetland ecosystem. They are recognized for their high ecological value, especially for their rich biodiversity and numerous bird species, making them a prime destination for ornithology and environmental education.
Yes, at Laguna de las Madres in Arganda del Rey, there is a unique opportunity to rent a boat to explore the lagoon. This lake is known for its tranquility and aesthetic appeal, offering a peaceful escape.
Campillo Lagoon is often cited for its picturesque views, especially of the small cliffs of Rivas. Laguna de las Madres is also described as one of the most beautiful lagoons in the park, offering tranquil and aesthetic scenery.
Many of the lakes and lagoons in the Parque Regional del Sureste are artificial, formed from former aggregate extraction sites. These depressions filled with groundwater over time and have been reclaimed and re-naturalized, transforming them into significant ecological hotspots. The Jarama River's lower basin, in particular, is linked to the creation of 132 such artificial lagoons.
The gypsum cliffs are an important environmental element of the regional park, enriching the landscape's aesthetic quality. These striking grey and whitish cliffs are formed by large layers of marl and gypsum sediments. Their unique appearance and the toxic nature of their substrate mean that only specific, adapted plant species can colonize them, adding to the park's natural wealth.
Visitors appreciate the region's natural beauty and tranquility. Many enjoy the opportunities for birdwatching, the peaceful walks along the comfortable tracks next to the lagoons, and the picturesque views. The successful environmental recovery of former mining sites into thriving wetlands is also a highlight for many.


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