Best natural monuments around Valle De Yerri showcase a diverse natural landscape in Navarre, Spain. The region features unique geological formations, including karst landscapes with caves and sinkholes, alongside varied flora and fauna. These sites offer opportunities for outdoor activities such as hiking and nature observation. Valle De Yerri's natural attractions are characterized by their distinct hydrological features and scenic views.
Last updated: July 1, 2026
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Access is restricted as it is a Nature Reserve and prior reservation is required. Access to the final stretch is prohibited due to its fragility, under penalty of a fine.
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Beautiful return through Urbasa medicat
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Always impressive, I love it, absolutely recommended!!
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The Portupekoleze arch-cave, located in the Urbasa mountain range, is the spectacular result of water erosion, which over the millennia has created this enormous arch in the rock.
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Of the most accessible and cool places with snow, the car park is less than 1 kilometer away
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Beautiful arch very close to the sale of Lizarraga. It can be accessed from the lower track or going up close to the cut from the inn itself. You can go down to the lower cave. This arch is an unavoidable "must" if you are in the area.
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Also known as "Balcón de PIlatos", this panoramic point offers one of the best panoramic views of the entire Urbasa-Andia Park over the source of the Urredera river.
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Valle De Yerri is rich in diverse natural features. You can explore unique geological formations such as karst landscapes with caves and sinkholes, impressive river sources like the Source of the Urederra River with its turquoise waters, and picturesque canyons like the Irantzu River Canyon. Panoramic viewpoints, including Ubaba Viewpoint (Pilatos Balcony), offer extensive views over the Urbasa-Andia Park.
Yes, several natural monuments in Valle De Yerri are suitable for families. The Portupekoleze Arch is noted as family-friendly and accessible, offering the possibility to explore a lower cave. The Irantzu River Canyon also provides a picturesque and accessible route for a tranquil natural experience.
The region around Valle De Yerri offers a variety of outdoor activities. You can enjoy hiking through scenic canyons like the Ubagua River Canyon, or explore the extensive beech forests of Urbasa and Andía Natural Park. For cycling enthusiasts, there are numerous gravel biking and mountain biking trails. You can find detailed routes and guides for hiking, gravel biking, and MTB trails in the area.
The natural monuments in Valle De Yerri can be enjoyed throughout the year, but spring and autumn often offer the most pleasant conditions for hiking and exploration. During these seasons, the weather is generally mild, and the landscapes are particularly vibrant with lush greenery or autumnal colors. Summer is also popular, especially for water activities at places like Alloz Reservoir, but some areas might require reservations due to popularity, such as the Source of the Urederra River.
The diverse ecosystems within Valle De Yerri's natural monuments support a variety of wildlife. Urbasa and Andía Natural Park, for instance, is home to 145 different vertebrate species, benefiting from its position between Atlantic and Mediterranean bioclimatic zones. You might encounter various bird species, and in the open pastures, horses, sheep, and cattle graze freely.
While primarily natural, some sites blend natural beauty with cultural heritage. For example, the Irantzu River Canyon route often starts near the Irantzu Monastery, offering a combination of natural scenery and historical context. Additionally, the region's unique geological formations have shaped human settlement and activities over centuries.
Valle De Yerri is known for its striking karst landscape, particularly evident in Urbasa and Andía Natural Park, which features limestone massifs with fascinating formations like caves, chasms, and sinkholes. The Portupekoleze Arch is a notable natural rock arch, and the canyons of the Irantzu and Ubagua rivers showcase impressive crags and water-sculpted pools.
Parking availability varies by location. For popular sites like the Source of the Urederra River, access is restricted and requires prior reservation, which often includes parking arrangements. For the Portupekoleze Arch, parking is available less than 1 kilometer away, making it very accessible. It's advisable to check specific access information for each monument before your visit.
Yes, many natural monuments in Valle De Yerri offer circular routes or trails. The Urbasa and Andía Natural Park has various marked trails suitable for hiking. The Ubagua River Canyon also features paths that allow for immersive walks, often leading to the river's source. You can find detailed circular routes in the hiking guide for Valle De Yerri.
Visitors frequently praise the stunning natural beauty and tranquility of the region. The turquoise waters of the Source of the Urederra River are a particular highlight, despite access restrictions. The panoramic views from spots like Ubaba Viewpoint (Pilatos Balcony) are also highly appreciated, offering extensive vistas over the park. The accessibility and unique formations of sites like the Portupekoleze Arch also receive strong recommendations.
For hiking in Valle De Yerri's natural monuments, it's recommended to bring appropriate footwear for varied terrain, especially if exploring areas with uneven paths or potential for mud. Water, snacks, and sun protection are essential. Depending on the season, layers of clothing are advisable, as weather conditions can change. If visiting restricted areas like the Source of the Urederra River, ensure you have your reservation details.
Yes, the Alloz Reservoir (Embalse de Alloz) is a significant natural attraction near Valle De Yerri that offers opportunities for various water sports. It's an excellent spot for sailing, canoeing, and stand-up paddleboarding, providing a different kind of outdoor experience compared to the region's hiking trails and geological sites.


Extend your search for the best caves by checking out these guides of the top ones around Valle De Yerri: