Uxar cave

Uxar Cave is a small cavity in the municipality of Eskoriatza, in the province of Gipuzkoa, in Spain's Basque Country. It lies near the Bolibar hamlet, on the slopes of the massif dominated by Aitzorrotz peak. The site combines natural and archaeological interest: in the Basque cultural heritage database Ondarea, the cave is registered as a cueva sepulcral — a burial cave — meaning it was historically used as an interment site.

Where is it located?

Eskoriatza sits in the Leintz valley (part of the Debagoiena, or Upper Deba, area), surrounded by mountain ridges, the most prominent of which are Aitzorrotz and Kurtzebarri. Uxar Cave lies at roughly 730 metres above sea level, within the broader area of the Aizkorri-Aratz Natural Park — one of the most limestone-rich, cave-dense regions of the Basque Country. Its entrance is narrow, a common trait of the small karst caves found across this terrain, shaped over millennia by water dissolving the limestone bedrock.

How to get there?

The most straightforward way to reach the cave is on foot, following the trail that climbs from Eskoriatza toward Aitzorrotz peak. A popular circular route links Eskoriatza, the Aitzorrotz summit, Uxar Cave, the Dorleta sanctuary, and the small town of Leintz Gatzaga, historically known for its salt works. Hikers typically combine the summit viewpoint with a visit to the cave on the way down. Given the mountainous terrain, sturdy hiking boots and a trail map are recommended.

What will you see?

The cave itself is small, with a narrow entrance, making it unsuitable for large groups or anyone uncomfortable in confined spaces. Its appeal lies less in scale or dramatic rock formations than in its archaeological and landscape context. Nearby, visitors can take in the characteristic limestone scenery of Aizkorri-Aratz, sweeping views over the Leintz valley, and Aitzorrotz peak itself, which dominates the skyline and is one of the most popular hiking destinations in the Debagoiena area.

When to visit?

Spring and autumn are the best seasons, offering mild mountain temperatures and trails that haven't been softened by winter rain or snow. In summer, the exposed sections of the route can get hot, while winter conditions — snow and ice — can make the approach to the cave difficult or risky without proper mountain experience.

Frequently asked questions

Can you visit Uxar Cave without a guide? Yes, the cave sits along a public hiking trail and does not require permits or a guide. Because the entrance is narrow, some caution is still advisable.

How long does the hike to the cave take? It depends on the starting point, but the full route combining Eskoriatza, Aitzorrotz peak, and Uxar Cave is a typical full-day hike for moderately fit walkers.

Is there anything to see inside the cave besides the entrance? The cave is registered as an archaeological site (a burial cave) in the Basque heritage record, but there is no visitor infrastructure or exhibition on site — it remains a natural feature rather than a museum.

What else is worth seeing nearby? Close by are Aitzorrotz peak, the Dorleta sanctuary, and the town of Leintz Gatzaga with its salt-mining history — all of which can be combined into a single hiking route.