A23a

As of January 2025[update], its area is about 3,500 square kilometres (1,400 sq mi), which makes it the current largest iceberg in the world.

[7] On 1 December 2023, the iceberg was intercepted by the polar research ship RRS Sir David Attenborough, off the tip of the Antarctic Peninsula.

[10][11][12] In December 2024, the British Antarctic Survey (BAS) reported that the iceberg had exited the Taylor column and was now beginning to drift further north through the Southern Ocean.

[13] The BAS expects A23a to follow the Antarctic Circumpolar Current towards the island of South Georgia in the southern Atlantic Ocean, where it will eventually encounter warmer water and break up into smaller icebergs.

[14][2] As of 23 January 2025, A23a is 173 miles (278 km) away from South Georgia and still on its way towards the island, potentially threatening the penguin and seal populations by blocking their access to feeding grounds.