'Sisu': the art of Finnish fortitude

Finland is a swimmer’s paradise and residents take to the water year-round. In colder months the practice often involves carving a hole into ice – a demonstration of “sisu”, the unique Finnish concept of fortitude in the face of adversity. Monocle joins journalist Katja Pantzar on an icy dip, to explore the mindset that dates back more than 500 years.