Balneario de Zuazo de Kuartango Historical milestone · Kuartango, Cuadrilla de Añana, Álava Image of Kuartango, not of the place itself. Along with the one at Nanclares de la Oca, the spa at Zuazo de Kuartango was built around a spring and became, in the 19th century, a recreation center for bourgeois society. Photo: Asier Sarasua Garmendia, Assar (CC BY-SA 4.0) What to see and do in Kuartango