Caves in Lic Sierra De Lokiz are a prominent feature of the Sierra de Lokiz, a karst landscape located in western-central Navarre, Spain. This region is known for its impressive geological formations, including numerous caves and cavities, showcasing the area's natural features. The Sierra de Lokiz is also a Natura 2000 site, highlighting its ecological significance with diverse environments ranging from rocky outcrops to dense forests. Exploring these subterranean features offers insight into the region's geological history.
Last updated: October 11, 2026
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Very simple arrival path, and very interesting. Too bad access to the interior is closed, beyond the first 15-20 meters.
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Today I have returned for the second time and it has seemed something impressive again.
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Very difficult descent of mostly loose rock with exposed sections. The beginning is a simple path. A section of about 20 meters must be ported. It is worth it for the views and going through the Ollabarren eye.
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I loved this Eye: the PR literally passes through the small cave that can be seen in the photos. A real joy.
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Another impressive cavity in the Sierra de Lokiz. The holes in the stones, the curves they form, the views that surround us... everything is spectacular.
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SPECTACULAR VIEWS from this cave accessible by a small climb (with a chain) and 10-20 meters through a cave no more than 1 meter high in some sections. An enjoyable site. Although yes, be careful if the ground is wet
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The Sierra de Lokiz is a remarkable karst landscape, meaning you'll encounter impressive geological formations. These include cliffs, ravines, and unique rock structures formed by water erosion over millennia. Caves like CuevaDelReloj are known for their interesting stone formations and curves, while OjoDeSanPrudencio offers spectacular views of the surrounding natural beauty.
Yes, some caves offer more accessible experiences. The Ojo de Ollobarren Cave is a great example, as a short-distance path (PR trail) literally passes through a small section of it, making it an enjoyable and accessible option for many visitors. For Basaula Cave, the arrival path is very simple, though access to the deeper interior is closed beyond the first 15-20 meters.
The region around the caves is excellent for various outdoor activities, especially hiking. You can find easy hikes like the 'Basaura Holm Oak – Basaula Cave loop from Améscoa Baja' or more challenging routes. There are also traffic-free bike rides and dog-friendly hikes available, allowing you to explore the diverse landscapes of the Sierra de Lokiz.
Visitors frequently highlight the spectacular views and the unique experience of exploring these natural formations. For instance, the OjoDeSanPrudencio is praised for its impressive vistas, accessible via a small climb. The Ojo de Ollobarren Cave is loved for the joy of walking directly through a small cave section on a trail. The sense of discovery in this wild and less-known area is also a significant draw.
Yes, for those seeking a more challenging adventure, the 'Descent Through Ojo de Ollabarren' is noted as a very difficult descent involving mostly loose rock and exposed sections. While demanding, it is considered worthwhile for the views and the unique experience of passing through the Ollabarren eye.
The Sierra de Lokiz experiences a transition between Atlantic and Mediterranean climates. While specific best times for caving aren't detailed, visiting during milder seasons like spring or autumn generally offers more comfortable temperatures for hiking and exploring the surrounding natural areas. Always check local weather conditions before your visit, especially if planning to enter caves or traverse wet sections.
Absolutely. The Sierra de Lokiz is designated as a Natura 2000 site, which is part of a European network dedicated to conserving species and their habitats. The Basaura ravine, home to Basaula Cave, is a declared Natural Reserve, underscoring the ecological value of these areas. The caves themselves harbor unique biodiversity, including newly discovered insect species.
Many caves in the Sierra de Lokiz showcase unique geological characteristics. CuevaDelReloj is particularly noted for its impressive cavity, featuring interesting holes in the stones and natural curves. The entire region is a karstic massif, offering a direct glimpse into the geological history and the powerful erosive effects of water on limestone.
Yes, several caves are integrated into well-regarded hiking trails, enhancing the outdoor experience. For example, a PR trail directly passes through a small section of the Ojo de Ollobarren Cave. Similarly, a hiking route specifically includes OjoDeSanPrudencio, highlighting its scenic appeal and accessibility for hikers.
Beyond the caves, the Sierra de Lokiz is home to other spectacular natural formations. The Portupekoleze Arch, located near Lizarraga, is a notable natural monument. While primarily an arch, it also encompasses a lower cave that can be accessed, making it an unmissable site due to its impressive formation created by water erosion over millennia.
Access varies by cave. Some, like the initial section of Basaula Cave or the passage through Ojo de Ollobarren Cave, are relatively straightforward. However, others, such as OjoDeSanPrudencio, may involve a short climb with a chain and navigating low sections. For more challenging routes like the 'Descent Through Ojo de Ollabarren', expect difficult terrain with loose rock and exposed sections. Always be prepared and cautious, especially if the ground is wet.


Extend your search for the best caves by checking out these guides of the top ones in Lic Sierra De Lokiz: