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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

Educate to protect: The underwater Txikiziklo at the San Sebastian Aquarium

From November 10 to 14, the San Sebastián Aquarium will host one of the most notable activities of CIMASUB 2025: the Txikiziklo Submarino, an educational program designed to awaken in young people a love and respect for the...

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The ocean in images: CIMASUB’s photographic exhibitions fill San Sebastián with underwater life

This November, San Sebastián will dive into the depths of the ocean thanks to the CIMASUB 2025 photography exhibitions, which will transform the city into a veritable showcase of the beauty and diversity of the underwater...

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‘The truth before your eyes’ in the trailer for CIMASUB 2025 in San Sebastián

The Donostia-San Sebastián International Underwater Film Festival (CIMASUB) is thrilled to present the official trailer for its 49th edition, offering a sneak peek at what promises to be a unique cinematic experience that will...

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Opinions

Jose Hernández

Participating in the CIMASUB International Underwater Film Series has been an enriching experience that has expanded not only my vision of the ocean, but also my commitment to its defence and conservation.

During the...

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Yolanda Coronado

After suffering a serious accident that prevented me from receiving my CIMASUB 2017 photography award live, for a collection of photos taken in the Canary Islands, Philippines and Indonesia. During my recovery I received the...

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David Galvañ Fernández

Undoubtedly the Cimasub is a national reference in terms of underwater film festivals and one of the most important at international level, all this is reflected in the large number of short films, documentaries and...

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