Celebrate Semana Grande 2025 in Zarautz: five days of music, regattas, fireworks, and tradition by the Cantabrian Sea. A summer festival full of life, culture, and local flavor.

Zarautz Welcomes Summer with Fire, Music, and the Sea

August arrives in Zarautz like a long, warm wave that refuses to stop. And if there's a moment when that energy overflows, it's during its Semana Grande — the town's Big Week — held this year from August 13 to 17. Five days in which this coastal village fills with sounds, lights, regattas, aromas, and shared applause. It’s not just a local festival. It’s how Zarautz, facing the Cantabrian Sea, affirms its identity: open, vibrant, with its feet in the sand and its gaze on the horizon.

From the first notes of the txistu flutes and the first rocket lighting up the sky, the atmosphere shifts. The old town fills with people, the squares become stages, balconies are dressed with white scarves, and local crews move to their own rhythm through bars, kalejiras, and live music. In the afternoons, the breeze between the promenade and the gardens of the Narros Palace blends with traditional songs, youthful voices, children’s laughter, and the constant hum of the sea.

One of the most anticipated moments is the trainera regatta, where traditional boats race across the bay with strength and elegance. It’s an athletic show — but also an emotional one. Entire families cheer from the breakwater. Names, chants, and drumbeats fill the air. And when a local trainera crosses the finish line, the collective thrill is undeniable. The sea, usually a school, a refuge, or a peaceful backdrop, becomes a battlefield, a symbol of effort and heritage.

As night falls, Zarautz doesn’t wind down — it lights up. Street dances blend with concerts by rising bands and well-known artists. In Munoa Square or along the Malecón, music finds its place under the stars. Children dance in the parks, teens gather in front of the stage, and elders remember how things used to be — and how, at heart, they still are: the town celebrating by the sea.

Fireworks crown several of the nights with displays that don’t need much spectacle to move you. A full beach, a clear sky, and a crowd ready to be amazed are enough. The explosions of color over the water are more than fireworks — they’re signals. New memories for first-timers, renewed ones for lifelong locals.

And through it all, life goes on. The cider houses are still full. The crews keep singing. The scent of grilled sardines, ice cream, and freshly made tortillas floats through the streets. Zarautz doesn’t stop — it gives itself over. And anyone who visits the town during Semana Grande quickly understands they’re not just attending a festival — they’re becoming part of something deeper than a program.

At Ziro Club, we’ll be following this event with excitement, paying attention to every detail where coastal life and popular culture intertwine. Because some celebrations are just seen, and others are truly lived. And every August, Zarautz reminds us: summer isn’t something to explain — it’s something to experience.