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Foul things lurk in forgotten places.

The Ancient Waterway, also known as the Old Waterway and Baron Waterway, is a location in Final Fantasy IV and Final Fantasy IV: The After Years. It is the sewers of Baron, and connects the city to Baron Castle. The entrance is located at the western edge of the city of Baron, and is locked with the Key of Baron.

It contains many hidden passages that the party must discover to navigate their way. There is a Save point near the end of the Waterway.


Final Fantasy IV[]

After becoming a Paladin, Cecil, along with Tellah, Yang, Palom and Porom, use the waterway to sneak into the castle and rescue Cid.

Final Fantasy IV: The After Years[]

To get inside Baron Castle following the attack upon it by a horde of monsters, Ceodore and the Hooded Man, the latter of which seemed to have knowledge of Baron's structure, traverse this passage. Ceodore obtained the key to the secret passage from Cid's daughter, who lives with Cid near the waterway's entrance.


The secret room.


By turning right then walking straight from the entrance, a secret room will be revealed at the end of the hidden passage. The room contains a treasure chest with 1000 gil.


After the player defeats Cagnazzo, the Tsunami augment will be available for pick-up here.


Battle Background on land.

Final Fantasy IV[]

2D versions

In B2, at the top of the long staircase on the left, there is a secret passage that leads to a treasure; there is another in the save room in the upper corner above the four rocks on the right.

3D versions
  • Ether x2
  • Hi-Potion
  • Zeus's Wrath
  • Bronze Hourglass
  • Hermes Sandals
  • Spider Silk
  • Ancient Sword
  • Map completion: Hi-Potion x3, Ether, Remedy x3

Final Fantasy IV: The After Years[]


Final Fantasy IV[]

Final Fantasy IV: The After Years[]

Musical themes[]

The background music that plays inside the Ancient Waterway is the Final Fantasy IV "Dungeon" theme.