The most anticipated blue event of the year is back in Milan! The fourth edition of One Ocean Week, conceived and promoted by One Ocean Foundation, will take place from May 22 to 25.

At the heart of the event is the Ocean Sphere, set up in Piazza XXIV Maggio, a true hub dedicated to the ocean, where science, culture, and innovation come together. The programfeatures talks, educational workshops for children, hands-on activities for adults, and film screenings—an immersive experience to explore the marine world and its vital role for our Planet.

The Ocean you don't know

Did you know that only 5% of the ocean has been explored, while it is estimated to host 80% of all living species? The rest remains an unknown world, full of mysteries and fundamental dynamics that sustain Earth's balance.

During One Ocean Week, we’ll take you on a journey into the ocean’s unexplored depths. Join us to discover the sea’s hidden secrets and its impact on the future of our Planet!

The values of One Ocean Week

Concrete Actions

Beyond words—real, tangible solutions for ocean protection.

Awareness

Informing to inspire conscious and responsible choices.

Scientific approach

Content validated by experts.

Education & Culture

Engaging new generations to shape a sustainable future.

Global Impact

Positioning Milan as an international hub for ocean conservation.