World Oceans Day

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Introduction References & Edit History Related Topics

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World map. Continents. Oceans. Mendel thumb ok

Just How Many Oceans Are There?

A large school of mano (sharks) called Galapagos sharks at Maro Reef in the Papahanaumokuakea Marine National Monument. Galapagos shark (Carcharhinus galapagensis)a worldwide species of requiem shark, family Carcharhinidae.

Saving Sharks in the 2020s

ripped torn flag, pirate, skull

Are There Laws on the High Seas?

A big, powerful wave breaking near the shore.

What Makes a Wave Go Rogue?

Sailboat against a beautiful landscape

Which Waters Do You Pass Through When You “Sail the Seven Seas”?

Discover

Nelson Mandela, undated photo.

15 Nelson Mandela Quotes

Close up of praying mantis walking on stone ground against a blurred background in Japan

6 Animals That Eat Their Mates

Time zone map with standard time zones and International Date Line

Why Are Some Time Zones 30 Minutes Off Instead of an Hour?

airplane in flight (plane, aircraft, flying)

7 Puzzling Plane Disappearances

Paul Revere. "The bloody massacre perpetrated in King Street Boston on March 5th 1770 by a party of the 29th Regt.," engraved by Paul Revere. Boston Massacre.

There’s a Riot Goin’ On: Riots in U.S. History (Part One)

Lake Mead (the impounded Colorado River) at the Hoover Dam. The light-coloured band of rock above the shoreline shows the decrease in water level in the first few years of the 21st century.

6 Lakes That Are Drying Up

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

World Oceans Day: Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Last Updated: Jun 14, 2025

News •

IMA marks World Oceans Day with launch of book on coral reefs • June 12, 2025, 8:32 AM ET (Trinidad Guardian)

UN Ocean Conference sets sail off France on World Oceans Day • June 8, 2025, 1:05 PM ET (AP)

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marine ecosystem ocean June World TB Day World Cancer Day International Nurses Day World Heart Day Pride Month World Malaria Day World AIDS Day Trooping the Colour Groundhog Day Human Rights Day