Timelapse shows giant iceberg - three times larger than New York City - drifting through sea

Watch as the world's largest iceberg moves through the ocean in a month-long timelapse captured throughout December. A23a, the huge iceberg measuring about three times the size of New York City, was calved from the Antarctic coast in 1986. It was stuck in the Weddell Sea for many years before slowly beginning to move out to the open ocean in the Southern Ocean. Last month, the RSS Sir David Attenborough encountered the world’s largest iceberg as it drifted away from Antarctica. Watch more on Independent TV: Click here to subscribe to The Independent: About The Independent: Making Change Happen. The Independent is the world’s most free-thinking newsbrand, providing global news, commentary and analysis for the independently-minded. Connect with The Independent: Check out our full video catalog: Videos, daily editor