FFIV wiki iconIVTAY wiki iconFFRK wiki icon

The Underground Waterway, also known as Watery Pass, is a cave in Final Fantasy IV and Final Fantasy IV: The After Years. It is a cave filled with water that connects Kaipo and Damcyan. There are two halves of the cave. The southern part contains an underground river, and the northern part contains an underground waterfall and lake. The exit to the lake is frequented by octopus-like monsters.

Story Edit

Final Fantasy IV Edit

Spoiler warning: Plot and/or ending details follow. (Skip section)

Cecil Harvey and Rydia pass through this cave in order to search for the Sand Pearl. Tellah also passes through this cave so he can reach Damcyan because his daughter, Anna, ran there with Edward Chris von Muir, who was disguised as a Bard.

However, he could not defeat the Octomammoth at the end of the cave on his own. The three met up and decided to work together to get through the cave. They took a pit stop at a Special Field and used Tellah's Tent. That night, Tellah and Cecil discussed their pasts and how Rydia, a Summoner of Mist, could improve her powers. The three of them eventually reached and defeated the Octomammoth, granting passage to Damcyan.

Final Fantasy IV: The After Years Edit

Several years later, Palom and Porom explore the waterway as training for Palom's quest to become a sage. At the end of the falls the two defeat the Cooler Mammoth, and Porom realizes afterwards Palom only wished to come here to challenge the monster Tellah fought before. She lectures him on how sages ought to use their magic, and the two return to Mysidia.

When the Red Moon returns and a meteor impacts near Mt. Hobs, Edward, Harley and a trio of guards from Damcyan traverse the waterway via hidden passages that let them climb back up the falls. The five head to Kaipo to catch a ship to Baron, but Edward soon heads back alone to the Antlion's Den when Harley falls ill and needs a Sand Pearl to treat her fever. On his way back Edward is accosted by bandits and washes down the falls to surface at the bottom.

After Edward arrives at Baron and returns to Damcyan, Ceodore Harvey and the Hooded Man travel through the waterway to reach Damcyan after seeing the Red Wings flying towards the castle.

Spoilers end here.

Locations Edit

Octomammoth underground waterway ffiv ios

The Octomammoth blocking the passage.

Exit to Damcyan

It is found in the Underground Lake's B1, the last floor of the twin underground dungeons. An Octomammoth blocks the rest of the passage, which is the exit that leads to Damcyan. The party must defeat the Octomammoth.

Items Edit

Final Fantasy IV Edit

The After Years Edit

Enemies Edit

Final Fantasy IV Edit

Final Fantasy IV: The After Years Edit

Edward's Tale
Kain's Tale

Musical themes Edit

The background music that plays inside the Underground Waterway is the Final Fantasy IV generic "Dungeon" Theme.

Other appearances Edit

Final Fantasy Record Keeper Edit

FFRK Underground Waterway FFIV

Painting image.

Cecil finds his beloved Rosa in Kaipo, only to learn she languishes with the deadly Desert Fever. He sets out for Damcyan to find a cure.


Underground Waterway is unlocked by completing Mist Cave in the Final Fantasy IV realm. Completion of this dungeon unlocks Antlion's Den in the Final Fantasy IV realm.

Classic Rewards
Completion Type Item Quantity
Completion Reward Gil 700
Mastery Reward Minor Power Orb 5
Stamina Shard 1
First Time Completion Mythril 1
Stamina Shard 5
Elite Rewards
Completion Type Item Quantity
Completion Reward Gil 3,500
Mastery Reward Light Rod (III) 1
Stamina Sahrd 1
First Time Completion Mythril 1
Stamina Shard 1

Gallery Edit

Community content is available under CC-BY-SA unless otherwise noted.