Which ocean current circles Antarctica without meeting a continent?

The Antarctic Circumpolar Current is the ocean current that circles Antarctica without meeting a continent.

It flows continuously from west to east around Antarctica, connecting the Atlantic, Indian, and Pacific oceans. The absence of a continental barrier allows the current to form the only uninterrupted current around the planet. Strong westerly winds help drive it, while the Earth’s rotation and density differences also influence its circulation.

The current is important because it limits the direct movement of warmer subtropical waters toward Antarctica and helps isolate the continent climatically. It also transports enormous amounts of seawater and redistributes heat, nutrients, carbon, and marine organisms between ocean basins.

The Gulf Stream and Kuroshio are powerful regional currents, but each is constrained by continents and basin boundaries. The Antarctic Circumpolar Current is unique in its uninterrupted global path.