From shorelines to screens, World Oceans Day is making waves today with the 2025 theme, Wonder: Sustaining what sustains us. This movement calls people to reflect on the ocean’s role in supporting all life on Earth, and to protect what makes it so vital and awe-inspiring. Held every June 8, the event mobilizes coastal cleanups, youth action and United Nations-led summits.

This year’s spotlight event unfolds in Nice, France, alongside the U.N. Ocean Conference. Keynote panels, expert roundtables and community-led projects drive the program, emphasizing cross-border collaboration and solutions with global impact.

A global celebration of our oceans

World Oceans Day was officially recognized by the U.N. in 2008, though its roots go back to the 1992 Earth Summit in Rio de Janeiro. Originally

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