In this episode of the ICUK #NovýStart podcast, we interviewed a Czech freediver and fitness enthusiast who has been freediving since 2015 and has achieved several world records. In 2021, he broke the record for free swimming under the ice in a swimsuit and goggles, originally set by Wim Hof and subsequently broken by Stig Severinsen. In 2023, he set another world record when he became the first person in the world to dive to a depth of 52 meters under the ice on a lake in Switzerland. Hear how extreme conditions affect him, how he manages mental work, concentration and adaptation to icy waters. Find out what motivates him and how he combines hardening and freediving for his personal development.