Anaesthetist and cave diver Dr Richard "Harry" Harris joins Bron and the Radio Marinara team ahead of the release of Deeper (2025); a documentary from Jennifer Peedom on Harris, and his exploration of the Pearse Resurgence - New Zealand's deepest cave system.

Harris, 2019's Australian of the Year, was globally recognised for his effort in the Tham Luang cave rescue. In 2018, Harris and dive partner, Craig Challen, dove 245m to rescue a football team of twelve boys and their coach who had become trapped due to monsoon flooding.

Deeper opens in Australian cinemas on 30 October.