A Southern Ocean passage has long been revered as the zenith of bluewater ocean voyages, but there has been little agreement on what, actually, constitutes the Southern Ocean boundaries.
On 8 June 2021, World Oceans Day, the National Geographic Society formally recognised the Southern Ocean as the world’s fifth ocean, joining the Atlantic, Pacific, Indian, and Arctic Oceans. Most of the waters that surround Antarctica out to 60°S, excluding the Drake Passage and Scotia Sea, constitute the newly acknowledged Southern Ocean, which are characterised by the Antarctic Circumpolar Current, rather than defined by a degree of latitude.
By drawing attention to the Southern Ocean, the National Geographic Society hopes to promote its conservation and define areas for its preservation.…