The Sea of Cantonica, also known as the Cantonican sea, was an artificial ocean located on the planet Cantonica, considered the galaxy's largest. The casino city of Canto Bight was located on its shores. From orbit, the sea's shape belied its artificially created nature.
- "Rules of the Game"—Canto Bight (First appearance)
- "The Wine in Dreams"—Canto Bight (Mentioned only) (First identified as Cantonican sea)
- Star Wars: Episode VIII The Last Jedi
- Star Wars: The Last Jedi: The Visual Dictionary
- Star Wars: The Last Jedi: Ultimate Sticker Collection