Cascada de Gujuli, Urkabustaiz Nature · Urkabustaiz, Cuadrilla de Zuia, Álava Waterfall of more than 100 meters formed by the river Jaundia as it drops down a steep slope before continuing toward the Altube, in the municipality of Urkabustaiz, next to the Gorbeia nature park. Photo: Gazpa (CC BY-SA 3.0) What to see and do in Urkabustaiz