Discover the five major oceans of the world: Pacific, Atlantic, Indian, Southern, and Arctic. Learn their locations and unique characteristics.

Oceans are Earth’s defining feature, its largest ecosystem, and the engine that powers our planet.

On Location: ‘Ocean with David Attenborough' Takes Us From the Red Sea to Hawaii. The directors of Ocean with David Attenborough share their favorite locations from the new documentary film.

Not to mention, the ocean is key to our economy with an estimated 40 million people being employed by ocean-based industries by 2030. Even though all its benefits, the ocean is now in need of support.