(FILES) This handout image released by EYOS Expeditions on January 19, 2024, shows an aerial view of the A23a iceberg in the waters of The Southern Ocean off Antarctica on January 14. The world's biggest iceberg, which split from the Antarctic coastline in 1986, continues to be on the move after more than 30 years. At almost 4,000 sq km (1,500 sq miles) in area, more than twice the size of Greater London, and approx 400m (1,312 ft) thick. The tooth-shaped iceberg named A23a is more than twice the size of Greater London. After three decades stuck to the Antarctic sea floor, the iceberg is heading northeast, being battered by waves in what is thought to be its final months. It is estimated to weigh nearly a trillion tonnes and be 400 metres (1,300 feet) thick at its deepest points. (Photo by IAN STRACHAN / EYOS Expeditions / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO/EYOS EXPEDITIONS/IAN STRACHAN " - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS (Photo by IAN STRACHAN/EYOS Expeditions/AFP via Getty Images)