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Sporting Witness: Diving into the world's largest iceberg

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09/06/2022 GMT

Diving into the world's largest iceberg

BBC World Service - Sporting Witness, Diving into the world's largest iceberg

Canadian diver Jill Heinerth was the first woman to enter the caves of a giant iceberg

Canadian diver Jill Heinerth became the first woman to enter the caves of a giant iceberg in 2000

In 2000, Jill Heinerth was already a renowned diver, known for her exploits mapping vast underground cave networks in Florida. Filming for a National Geographic documentary brought a new and unprecedented challenge; a vast iceberg known as B-15 had broken away from an ice shelf in Antarctica, providing a unique chance to explore its networks of underground caves. Braving sub zero temperatures and the treachery of constantly shifting ice, Jill became the first person to ever enter one of these caves - a historic milestone in diving. She tells her story to Emily Finch. 

PHOTO: The B-15 iceberg (Wolfgang Kaehler/LightRocket via Getty Images)

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