Festivals in Castro-Urdiales

Local festivals and cultural agenda

The most visible festive reference of Castro-Urdiales is the Coso Blanco. The official tourism portal presents it as Festival of Regional Tourist Interest and places it first friday in july.

• Name of the municipality's festivities: Semana Grande y Coso Blanco.
• Main celebration day: In 2026, the official programme places the Coso Blanco the 3 July; It is usually celebrated on the first Friday in July.
• Usual duration: The municipal programming for 2026 covers 23 June to 3 July, with events from Semana Grande and Coso Blanco.
• Usual places: the urban environment, Amestoy Park, the bay, Town Hall Square and spaces for municipal celebrations.
• Associated traditions: night parade of floats made with tissue paper, music, parades, booths, barracks, confetti, streamers and fireworks.
• Who participates: City Council, carriage drivers, troupes, local artisans, cultural groups, neighbors, families and visitors.
• Local public holiday: a work date has not been incorporated as verified for 2026; must be confirmed in the official work calendar or in the corresponding bulletin before taking it as a non-working day.
• Other cultural events: The municipal agenda includes Semana Grande, cultural activities, guided tours, exhibitions and tourism programming.
• Otras ofertas culturales: historic centre, church of Santa María de la Asunción, Castle-Lighthouse, medieval bridge, hermitage of Santa Ana, beaches, Ballena Cemetery, Rucabado route and official tourist routes.

You can consult the official file of the Coso Blanco and the Semana Grande and Coso Blanco 2026 Festival programme for updated dates, documents and acts.