WHAT do we know about icebergs? Well, they’re usually massive, made of ice, and one was instrumental in sinking the Titanic.

Operation Iceberg has a lot more to say on icebergs as naturalist Chris Packham, ocean expert Helen Czerski, diver Andy Torbet, cameraman Doug Allan and doctor Chris Van Tulleken embark on an expedition to the Arctic to trace the life cycle of one of these giants of the seas.

This will be the first time the creation, life and death of an iceberg has been charted in such a way.