Filmed by my father, Bengt Lagus in the 1960´s, I have edited the material. The water temperature was something between 15-18 degrees Celsius this day and it felt really cold for the children, also the air temperature was below 20 C.. The swimming “school” was in Luvia (Verkkoranta) Finland. I have also in the early 1970´s been at this swimming school and we then still did it the same way as here !