The little hermitage of San Pelaio is located between Bakio and Cape Matxitxako. It is one of the most popular hermitages in Bizkaia, both for its picturesque location on a steep bank overlooking the sea and its age. It should be noted that this building is one of the few examples of Romanesque style in Bizkaia.
Dating back to the 12th century, all through its perimeter it is surrounded by a wide portico with wooden roof, a common feature in many churches and hermitages in Bizkaia.
The clearest feature of its medieval identity is the delicate window decorating the apse with plant and geometric motifs.