Features and Content of the Work Composition as a Visual Poem: Unlike typical educational documentaries, there is almost no narration. It is a work like a "visual poem," composed solely of beautiful underwater footage and music by Eric Serra. Music: Eric Serra, who has worked with the director for many years, is in charge of the music. A variety of musical pieces are used, including rock, jazz, and opera, to match the movements of the marine creatures that appear. Main Creatures Featured: Manta rays, dolphins, orcas, sharks, manatees, sea snakes, and others are depicted gracefully or dynamically, as if they are dancing. Features of the Japanese Version: The subtitle translation (for the few narrations and poetic expressions in the film) in the Japanese pamphlet at the time of release was done by Yumi Matsutoya, which is also well-known.