Boys asks the girls to show him their bodies. They agree on the condition Tadek shows them his body. After the girls take off their clothes, Tadek chooses not to take off his clothes and instead scares them away with a knife.
A family discover that they are on a nudist beach. Mother, father and son have nothing to do but join this nude society. Rear nudity of character Jan Dvorák (called 'Honza', played by actor Marián Miks, 11).