Southern Ocean

Oceania ( , ) is a geographical region including Australasia, Melanesia, Micronesia, and Polynesia. Oceania is generally considered a continent, while mainland Australia is regarded as its continental landmass. Spanning the Eastern and Western hemispheres, at the centre of the water hemisphere, Oceania is estimated to have a land area of about and a population of around 46.3 million as of 2024. Oceania is the smallest continent in land area and the second-least populated after Antarctica. It is home to Earth’s third-largest remaining area of tropical rainforest, which covers much of the island

ocean around Antarctica

continent in the Earth's Southern Hemisphere

thumb|Map of Sahul with Sundaland|Sunda __NOTOC__ Sahul (), also called Sahul-land, Meganesia, Papualand and Greater Australia, was a paleocontinent that encompassed the modern-day landmasses of mainland Australia, Tasmania, New Guinea, and the Aru Islands.

ocean current

current related to the Antarctic Circumpolar Current, with the Antarctic Gyres and the Termohaline Global Circulation belt