Kim Chakanetsa speaks to two freedivers from Italy and Poland about what it takes to compete and set world-records in the extreme sport.

Athlete Alessia Zecchini set world and Italian records in freediving. She has recently featured on the Netflix documentary The Deepest Breath.

Julia Kozerska from Poland has broken multiple world records and specialises in dynamic no fins diving. Alongside training and competing, Julia also works as a lifeguard and physiotherapist.

Produced by Emily Naylor.

Image: (L) Alessia Zecchini (R) Julia Kozerska. Background: Alessia Zecchini diving, credit Laura Babahekian.)