Segregación municipal de Aizarnazabal Historical milestone · Aizarnazabal, Urola Kosta, Gipuzkoa Image of Aizarnazabal, not of the place itself. Aizarnazabal, joined to Zumaia since 1321, formed its own town council in 1821, which was revoked in 1823; after a further attempt in 1842, the independent town council was definitively established in 1845. 1845 Photo: Olatz Ovejero (CC BY-SA 4.0) What to see and do in Aizarnazabal