The austere 9th-century Santuario de San Miguel de Aralar, which lies in the shadow of Monte Altxueta (1343m), is the area's main attraction. Despite its pretty naves and 800-year-old altarpiece, it isn’t the sort of place you’d want to visit on a moonless night. There are some spectacular views down onto the plains to the south. Opening hours can be very erratic.
