Centre of a great religious attraction, the influence of this Sanctuary has spread to the entire coast since Itziar was founded in 1294.
It is an ancient temple although it was reformed in the 16th century. It has a single nave, without intermediate columns, with a special width and divided into three rectangular sections. There are reasons to believe that there was a church from the 13th or 14th century, with an attached tower, the remains of which largely remain as evidenced by the blinded windows of the west and midday facade and the pointed arch of the tower. Devoted to Mary, inside the temple the Romanesque image of the Virgin of Itziar (12th century) stands out, as well as its magnificent altarpiece carved in wood by Andres de Araoz in the 16th century, considered one of the best in Plateresque art. It represents the life of the Virgin according to the Gospels.
The image of the Virgin of unknown origin and author is Romanesque in style and its existence must be related to the temple prior to the 14th century. It is considered the oldest in Gipuzkoa, together with that of Juncal in Irun.
The image that dominates the main altar, with a proportionated and expressive face, is known for being one of the most beautiful of Basque iconography.
The Virgin inspires great devotion among these seafaring people. She was crowned on August, 3rd 1952.
Outside the temple, in the north wing, is the impressive steel sculpture Amatasuna (Motherhood), developed by Jorge Oteiza.