Fiesta of Udondo 2016 from September 9 to September 10. Past days. Friday, September 9 Saturday, September 10 You might be also interested in: Fiesta of Ondiz 2016 - Ondiz - 1 Kms. Fiesta of Bermeo 2016 - Bermeo - 33 Kms. Virgin of Latas 2016 - Somo (Cantabria) - 89 Kms. September Fiesta 2016 - Haro (La Rioja) - 89 Kms. Basque Fiestas 2016 - Ordizia (Gipuzkoa) - 100 Kms.