Semana Grande Festival Begins in San Sebastian

The city's largest annual festival, Semana Grande (Aste Nagusia), runs from August 8 to August 15. The event features a nightly international fireworks competition at La Concha Bay and free concerts, starting with the 'Cañonazo' cannon shot.

Why this matters to travelers

Expect extreme crowding and minimal accommodation availability. Travelers should book in advance and prepare for significant noise and activity in the city center.