Sanctuary of Nuestra Señora de la Encina, Arceniega

The Sanctuary of Nuestra Señora de la Encina is a church building featuring three naves of varying heights separated by pillars and covered with star-shaped vaults. The octagonal head section of the structure is crowned by these characteristic vaults and forms the focal point of the interior.

The sanctuary was completed in 1498, marking the conclusion of an extended construction phase on this site. Archaeological findings show the grounds had been occupied since Roman times between the 4th and 6th centuries.

The main altar displays a wooden Virgin sculpture from the 14th century set within a Flemish Gothic altarpiece dating to the early 16th century. Visitors can spend time observing the craftsmanship of these artworks, which have held meaning for the local community across generations.

The location is best reached on foot, allowing easy access to all areas of the grounds. Parking is available nearby, and the interior spaces are accessible to visitors interested in exploring the architecture and religious art.

A holm oak tree approximately 500 years old stands beside the northern facade and has been recognized by the Basque Government as a singular tree of note. This ancient tree has been a silent companion to the church through the centuries and is often overlooked by visitors.