World Ocean

"The World Ocean? I think that's a lot of oceans... united in one ocean. Can't believe that would be such an unbelievable idea it could happen in here."

--Su Ji-Hoon, A Long Voyage

The World Ocean or Global Ocean (colloquially the sea or the ocean) is the interconnected system of Earth's oceanic waters, and comprises the bulk of the hydrosphere, covering 361,132,000 square kilometres (139,434,000 sq mi) (70.8%) of Earth's surface, with a total volume of 1,332,000,000 cubic kilometres (320,000,000 cu mi).