This film marks Ishiro Honda's film directing debut. He was
greatly influenced by the people and the natural beauty of Ise Shima
(Mie Prefecture), the same location where he filmed the cultural movie 'Ise
Shima' just two years previous. He was also inspired for this film by
Katsuro Yamada's Naoki Award-winning novel Umi no Haien (Ruins of the Sea).
The people around Ishiro Honda, rather than being hopeful of his
success, were worried for him working as a director because of the
effects of his recent eight years in the military. But not
only did he do a fine job, he also created a sensation by
developing a system in which the camera could be used to film
underwater, the first time this was ever done in Japanese cinema.
Beginning with this film, Ishiro Honda would use Ise Shima as a
location many times throughout his career because of its beauty.