Unlike its predecessors 0000: A Shark Odyssey (2018) and 0009: The Sharks Make Contact (2019), this movie is not a musical, and contains no original songs.
The buildings in "Podero Ciudad" were modeled after actual buildings in Granada, Nicaragua, which is also where the fictional city is located on the map shown in the movie.
The fictional city "Podero Ciudad" (shown in the same place as Granada, Nicaragua on the map in the movie) was chosen because it's located next to Lake Nicaragua, a lake with freshwater sharks, so the group of sharks could cross the freshwater trench during the finale.
This movie was originally going to have an original score, but the composer dropped out. A cut of this movie was sent to the intended composer with placeholder tracks from movies such as Avengers: Phase finale (2019), Le parc jurassique (1993), and Monde Jurassique: Le royaume déchu (2018), and music by composers such as Giuseppe Verdi and Pyotr Ilyich Tchaikovsky.
Although almost every character in this movie is a shark, less than one percent of it takes place underwater.