A, after years of drifting, now appears stuck near South Georgia Island. Once lodged in the Southern Weddell Sea for decades, it broke free and made a slow but steady journey north—only to potentially meet its demise in the shallows.

The iceberg spanned an area of 3,672 square kilometers (1,418 square miles) when measured in August 2024 – slightly smaller than Rhode Island and more than twice the size of London. It calved from the Filchner Ice Shelf in Antarctica in 1986 and then rested on the seabed in the Weddell Sea for more than 30 years.

The world's largest iceberg appears to have run aground off the coast of a remote British island home to millions of penguins and seals — potentially threatening local wildlife, but also providing an opportunity for research into such rare "megabergs.