On the way home from school, at the first half of the movie, the six children stop to go skinny dipping. One boy and 2 girls are seen nude from the rear in this brief scene.
Nikolai (Evgeniy Kraynov, 13) and Anatoli (Artur Smolyaninov, 15) catch fish in a river, both seen nude from distance. Brief rear nudity of Anatoli after swimming when he is changing.
Eight boys (ages 9 to 11) skinny-dipping in a river, climb out and throw rocks at a woman who is passing by. Full frontal nudity of several of the boys.