Fiesta of Ondiz 2022 from September 2 to September 9. Past days. Friday, September 2 Saturday, September 3 Sunday, September 4 Thursday, September 8 Friday, September 9 Sunday, September 11 You might be also interested in: Fiesta of Ugao 2022 - Miravalles - 20 Kms. Fiesta of Arrate 2022 - Arrate (Gipuzkoa) - 66 Kms.