The scene with the waterfall was shot in Abkhazia, Georgia at the famous Gegsky waterfall. It is this waterfall which served as the "Reichenbach Falls", the place where Sherlock Holmes and Professor Moriarty clashed in a deadly battle in the famous film adaptation directed Igor Maslennikov.
Among the candidates for the role of Pavel and Stepa was the very popular actor Mikhail Boyarskiy, who eventually performed the opening song.
According to Luiza Mosendz, a casting assistant met her in a hallway; she immediately took the girl to Leonid Gaidai who almost immediately confirmed Luiza for the role of Alla Dmitryevna.
The leading lady Svetlana Amanova was a brunette so she had to periodically bleach her hair with hydrogen peroxide on the set.
For the role of the tourist camp director Mikhail Pugovkin was initially considered, but in the end the role was given to "master of the episodic role" - Boryslav Brondukov and Mikhail Pugovkin got the role of the main antagonist - "San Sanych".