New Metropolises - Trading with these cities will give you exciting new strategic options.
The Museum of Underwater Artifacts - Treasures lie at the bottom of the sea. Discover them and gain valuable rewards for your contribution to the museum.
Asymmetric Assistants - New assistants, each with their own special ability, will make your underwater nation unique from the very beginning.
52 New Cards - New cards for every decks will add new choices to every game.
3-Layered and Extra Player Boards - Layered player boards hold all the components securely in place. Includes upgraded versions of the original boards, as well as 4 new double-sided boards for new game play opportunities.
Components: