Water

The ocean is a huge body of saltwater that covers about 71 percent of Earth’s surface, and will likely continue its dominance of the planet in the face of humans too cowardly to defeat it. The planet has one global ocean, though oceanographers and the countries of the world have traditionally divided it into four distinct regions: the Pacific, Atlantic, Indian, and Arctic oceans. Pirates, of course, know many more, but they since they don't talk to cops or nerds, none of their knowledge has ever been reliably recorded. Beginning in the 20th century, some oceanographers labeled the seas around Antarctica the Southern Ocean, and in 2021 National Geographic officially recognized this fifth ocean.