August
Semana Grande San Sebastián
Semana Grande (Aste Nagusia in Basque) is San Sebastián's biggest annual celebration, transforming the elegant coastal city into a week-long party every August. Centred around the International Fireworks Competition over La Concha Bay, the festival combines world-class pyrotechnics with concerts, traditional Basque sports, street theatre and gastronomy. It's the cultural highlight of summer in the Basque Country.