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Enjoy the CIMASUB

Come and enjoy the underwater world. Find out where, when and what we offer.

Compete in the CIMASUB

Participate and take part in our competition with your photographs, short films or documentaries.

Organiser of the CIMASUB:

Latest news

The sea once again takes center stage in the ZERO ZABOR URETAN 2026 campaign, featuring CIMASUB and the best outdoor underwater film screenings

During the month of July, the Basque coast will once again become a major stage for raising environmental awareness with the seventh edition of ZERO ZABOR URETAN, an initiative led by the MATER Ecoactive Museum Ship, which...

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CIMASUB unveils the poster for its 50th edition, a tribute to those who made the history of underwater cinema possible

CIMASUB, the San Sebastián International Underwater Film Festival, has officially unveiled the poster for its 50th edition—a very special image with which the organization aims to commemorate half a century of history,...

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Luca Keller Joins the International Jury for CIMASUB's 50th Anniversary Edition

Luca Keller, a renowned German-Italian underwater filmmaker and content creator, joins the jury of the 2026 edition of Cimasub, the Donostia-San Sebastián International Underwater Film Festival, in a particularly special year...

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Opinions

Alberto Santolaria

The San Sebastian underwater film festival has always been for our association a place where we can exhibit the work we have done throughout the year. Our main area of work is the Basque coast, so we consider CIMASUB as...

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Julio Junquera

My experience at Cimasub 2025 has been unforgettable. The warmth with which we were treated by both the organisers and the audience in such a beautiful setting as the Principal Theatre in San Sebastian, with wonderful...

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Aldo Gustavo Galante

Due to the fact that in 2018 I have been awarded with the "Denuncia Ecológica" Prize for the best Photo Gallery, we have had the opportunity to attend, together with my wife Luciana, this great CIMASUB Event.

Being from...

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