World Oceans Day

World Oceans Day facts

• The world's oceans have a combined area of approximately 361 million square kilometers (139 million square miles). The Pacific Ocean is the largest and covers about 63 million square miles (165 million square kilometers).
• The average depth of the world's oceans is about 3,800 meters (12,467 feet). The deepest point in the ocean is the Mariana Trench in the western Pacific, reaching a depth of about 10,928 meters (35,856 feet).
• It is estimated that approximately 8 million metric tons of plastic waste enter the oceans each year.
• According to the National Ocean Service, in 2022, only about 35% of U.S. Ocean and coastal waters have been mapped with modern technology.
• If all of the Earth's ice melted, the oceans would rise 66m and flood all low-lying ground.
• The lowest point on the planet is located in Mariana's Trench in the western Pacific. The point, known as Challenger Deep, is 11,034m deep. (Mt. Everest is only 8,848m tall).

In the News and Trending in the US for World Oceans Day

Top things to do in the US for World Oceans Day

• If you live near an ocean, spend time swimming in the water, sailing, surfing or just walking along the beach. If you don't live near an ocean, plan a trip to enjoy ocean.
• Get your scuba diving license. Every city offers scuba lessons to prepare you see the underwater world. PADI and SDI are two well-known and reputable companies that offer certification courses. You cannot scuba dive without certification.
• Join the Wear Blue, Tell Two campaign. Wear blue clothes and share two ocean facts with friends.
• Watch one of many documentaries about oceans. Some of our favorites: The Death of the Oceans, Garbage Island, Plastic Seas, Deep Sea and Acid Test: The Global Challenge of Ocean Acidification
• Host a waterside cleanup or adopt a local waterside and do your part to help the oceans and its wildlife. World Oceans Day website offers a tool kit to help set up these activities.

World Oceans Day references and related sites