Best canyons around Castroserna De Abajo are characterized by significant limestone cliffs and calcareous canyons formed by the Río San Juan. This region, nestled between mountains and Segovian countryside, features notable gorge-like formations. The area is recognized for its ecological importance, serving as a crucial habitat for griffon vultures. These natural features offer diverse landscapes for exploration.
Last updated: July 4, 2026
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Located directly behind the Virgen de la Peña sanctuary. From there you have a wonderful view of the first hoces of the Duratón River. At the viewpoint there are informative signs about the fauna, flora and other features of Las Hoces.
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As you approach the historic town of Sepúlveda, the spectacular views of the Hoces del Duratón are revealed in their magnificent splendor. Like dominant towers, the rock formations of the surrounding cliffs are a powerful sight.
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Above the Río Duratón there are these immense rocks, a gorge formed by the river, where we can see these huge animals.
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The Duratón canyon is a valley nestled between the plateau of the Segovian páramo with walls that reach one hundred meters in several areas and an average width of fifty meters. The road draws the river line of the canyon, it is winding and undulating between imposing limestone and dolomite walls that have suffered a forceful wear of karstic dissolution for millions of years. At first the water filtered into the earth, forming an underground water course below the current course and due to erosion the roof and the side walls collapsed and the current bed emerged, although much narrower. Later periglacial modeling continued to affect the cuts in the gorges and increased the width of the gorge until the gorges became what they are today. The bottom of the river valley is an alluvial plain of gravel, sand, silt and clay where forest species grow that fill the interior of the gorge with life and color up to the meanders of the Burgomillodo reservoir, in the final stretch of the river within of the space of the natural park. In the central part of the gorges is the mouth of the Valdemuelas stream, a narrow gorge that descends from Villar de Sobrepeña, the area where the largest community of griffon vultures and birds of prey in the natural park is concentrated. The path is a constant gallery of poplars, poplars, alders, ash trees, willows, elms and other forest species associated with water courses. In some meanders the plain is more extensive and there are old plantations of walnut, chestnut, plum and wild hazelnut trees, the autumn festival of color is guaranteed. More than five hundred pairs of griffon vultures nest on the walls of the gorges, there are also Egyptian vultures, golden eagles and peregrine falcons.
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Fantastic place to see the vultures, as it is not a protected area, it allows you to see them much closer than other known areas of the Hoces del Duratón.
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We have never seen more vultures together than here
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The canyons and cliffs in this region are a crucial habitat for griffon vultures. You can observe a large colony of these birds, especially at locations like Vulture Cliff, which is known for allowing close observation. The Hoces del Duratón Natural Park also hosts Egyptian vultures, golden eagles, and peregrine falcons.
The area is characterized by stunning limestone cliffs and calcareous canyons primarily formed by the Río San Juan and Río Duratón. These dramatic geological features, including impressive rock formations and gorges, offer breathtaking views. The region also features juniper forests and riverine landscapes.
Yes, the region offers various opportunities for hiking. The "Ruta del Río San Juan" is a scenic route that passes through the calcareous canyons and juniper forests. For more specific routes, you can explore options like the "Long Duratón Trail" or the "Sepúlveda – Vulture Cliff loop from Sepúlveda" which are part of the running trails around Castroserna De Abajo.
Besides hiking, the area is excellent for cycling. You can find various routes for road cycling and general cycling, including routes like "Mirador de Zuloaga y hoces del río Duratón" or longer loops that take you through the scenic countryside and past the canyons.
Many areas offer family-friendly experiences, particularly viewpoints with easy access. For example, the Viewpoint of Virgen de la Peña is considered family-friendly and provides wonderful views of the Duratón River's gorges, complete with informative signs about local fauna and flora.
While specific regulations for dogs on all trails can vary, many natural areas in Spain are generally dog-friendly, especially on marked trails if dogs are kept on a leash. It's always advisable to check local signage or specific park rules for the most current information.
The canyons offer scenic beauty throughout the year. Spring and autumn generally provide pleasant temperatures for outdoor activities like hiking and cycling, with vibrant natural colors. Summer can be warm, but early mornings or late afternoons are still suitable for exploration. Winter offers a quieter, often starkly beautiful landscape.
Parking availability varies by specific location. For popular viewpoints and trailheads, designated parking areas are usually provided. For instance, when visiting the Viewpoint of Virgen de la Peña, parking is typically available near the sanctuary.
Generally, permits are not required for hiking or visiting viewpoints in the general canyon areas. However, if you plan to engage in specific activities like canyoning or enter protected zones within natural parks (such as the Hoces del Duratón Natural Park), it's advisable to check with local authorities or park management for any necessary permits or restrictions.
Castroserna de Abajo and nearby towns offer various options for accommodation and dining. You can find local cafes and restaurants to enjoy after your outdoor activities. For specific recommendations, it's best to check local listings in Castroserna de Abajo or neighboring villages.
For spectacular vistas, visit the Viewpoint of Virgen de la Peña, which offers wonderful views of the first gorges of the Duratón River. Another excellent spot is the View of Hoces del Duratón, revealing the magnificent rock formations and surrounding cliffs as you approach Sepúlveda.
While popular spots like the Hoces del Duratón can attract visitors, the broader region around Castroserna de Abajo, with its calcareous canyons carved by the Río San Juan, offers many opportunities for quieter exploration. Exploring the "Ruta del Río San Juan" might lead you to less frequented, yet equally scenic, sections of the canyons.


Already discovered everything in this region? See additional gorges around Castroserna De Abajo for your next adventure: