Alenka Artnik grew up in Slovenia in a loving but complicated family. Her father was an alcoholic, and her brother was addicted to drugs. Years of pain and grief meant that Alenka found herself feeling lost and alone. But then, just when she most needed it, when she'd thought about taking her own life – she found freediving and sanctuary in an underwater world. Drawing on her own personal, physical and mental strength, she is now a world champion freediver. Last year she broke world records by diving to an astonishing 122 metres.

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Presenter: Jo Fidgen

Producers: May Cameron and Andrea Kennedy

(Photo: Alenka Artnik. Credit: DaanVerhoeven)