"Saga de Poseidon" is a Spanish phrase that translates to "Saga of Poseidon." In the context of adult content, this tag refers to a pornographic video or series of videos featuring mythological themes or scenes involving the Greek god of the sea, Poseidon. This could include depictions of supernatural creatures, mythical locations, or ancient rituals related to Poseidon's realm. Viewers with an interest in mythology, Greek myths, and ancient cultures may be drawn to this type of content.