Xezat's Fleet, also known as the Zeza's Fleet, is a location in Final Fantasy V. Although the fleet is great in number, only the flagship can be explored.
The party descends into the fleet's flagship after the earthquake triggered by Exdeath causes Ghido's Cave to be swallowed by the seas. After a brief discussion with Xezat, the fleet engages with Exdeath's forces, the flagship being attacked directly by Gilgamesh's squadron.
After defeating him, the party discovers from Xezat that the fleet is only a distraction, and that his main goal is to use a Submarine stored in the ship to head to the Barrier Tower with the goal of destroying it.
The background theme that plays at Xezat's Fleet is called "The Castle of Dawn".