Tamborrada de San Sebastián Historical milestone · Donostia/San Sebastián, Donostialdea, Gipuzkoa Festival of military origin in which societies and companies parade playing drums for 24 hours, every January 20. In 2018 the Basque tamborradas (drum festivals) were declared Intangible Cultural Heritage by UNESCO. 20 de enero Photo: original photo: bichuas derivative work: Venerock) (CC BY-SA 2.0) What to see and do in Donostia/San Sebastián