It was was not the main actress Daliah Lavi who did the skinny dipping jump into Skradinski buk waterfall of Krka park. Lavi was already known for her willingness to pose and act nude, she had done the swimming scenes when it was warm and water was high. Completely different scenes.
They needed low water for safe rock climbing, though. Lavi became sick, it was already November, filming behind schedule. Producers saw local girl Gordana Čeko (1944-2022) and hired her. She undressed, got full body makeup in same bronze tone as Lavi, and was given a towel to cover herself while waiting in cold weather until it was her turn. A local did demonstrate which way to go and where a jump is safe, and to align the camera telescopic lense. She had to make sure to succeed in first attempt and not fall on the rocks, as she might got hurt and could not repeat the scene while being rough up, bleeding or worse. Thus did it safe, jumped into cold water, and was done. Producers never told that a noname did that part of the scene, thus it was attributed to Lavi for many years.
Surprising for 1964. Is this perhaps the German ('continental') edit?
It was was not the main actress Daliah Lavi who did the skinny dipping jump into Skradinski buk waterfall of Krka park. Lavi was already known for her willingness to pose and act nude, she had done the swimming scenes when it was warm and water was high. Completely different scenes. They needed low water for safe rock climbing, though. Lavi became sick, it was already November, filming behind schedule. Producers saw local girl Gordana Čeko (1944-2022) and hired her. She undressed, got full body makeup in same bronze tone as Lavi, and was given a towel to cover herself while waiting in cold weather until it was her turn. A local did demonstrate which way to go and where a jump is safe, and to align the camera telescopic lense. She had to make sure to succeed in first attempt and not fall on the rocks, as she might got hurt and could not repeat the scene while being rough up, bleeding or worse. Thus did it safe, jumped into cold water, and was done. Producers never told that a noname did that part of the scene, thus it was attributed to Lavi for many years.