On board the Disney Treasure Disney Cruise Lines newest ship guests will dive into the mythical depths of uncharted oceans at the Periscope Pub Serving as Disney Cruise Lines first venue inspired by the spellbinding adventure of Walt Disneys 1954 film 20000 Leagues Under the Sea and the legacy Disney Parks attraction the submarine styled interiors will give guests a look at the watery world below through an intriguing glass ceiling