Ever wondered how human beings can dive more than 60 metres underwater, without an oxygen tank? Or how you can survive without breathing for six minutes or more? Free diving champion Amber Bourke will answer those questions and many more, as she discusses how she discovered this incredible sport (6:55). She goes through the incredible breathing techniques required to naturally maintain her oxygen supply under water (15:48), why she wears goggles filled with water (20:12) and dispels some myths around blackouts (25:00). Amber discusses her devastation at missing a world record on a technicality (45:55) and some Harry Potter related advice she'd give her 10 year old self (1:02:30). See omnystudio.com/listener for privacy information.