EventsTop things to doAttractionsRestaurantsActivitiesShoppingNightlifeEntertainmentHotelsTours▲ Film in San SebastiánFilm FestivalThe world-renowned, two-week film festival has been an annual fixture in the second half of September since 1957. City Festival in San SebastiánFestividad de San SebastiánThis is the city’s main winter knees-up. Carnival in San SebastiánCarnavalCarnaval (dates change) is a big event in San Sebastián, but nearby Tolosa goes even more berserk. Summer Festival in San SebastiánSemana GrandeSemana Grande is the big summer festival. Rowing in San SebastiánRegatta de TrainerasThe Regatta de Traineras, a boat race in which local teams of rowers race out to sea, takes place on the first two Sundays in September. Music in San SebastiánHeineken JazzaldiaBig-name acts converge for the San Sebastián jazz festival.