The body of water encircling the Antarctic has been recognized as the fifth ocean: The Southern Ocean.

It’s been more than a century since the world’s ocean map has been amended which historically only included the Atlantic, Pacific, Indian and Arctic Oceans. The reason for giving this body of water its own name is found in its distinct ecological characteristics. The Southern Ocean current pattern, known as the Antarctic Circumpolar Current (ACC), are unique which makes this area worthy of its own name according to the National Geographic Society. The water in this region is colder with lower salt levels compared to other waters in the north.

According to NOAA, the Southern Ocean has been recognized by the U.S. Board on Geographic Names. This body of water extends from the coast of Antarctica to the line of latitude at 60 degrees South. However, there are countries that do not agree on the proposed boundaries which means members of the IHO still have to confirm them.