Secret Underwater Dungeon
Using 'Mog Net' send 7 mails to another player and then send 4 mails each to the NPC 'The 4 Old Men' and 'King Alus'. The order which the mails are sent does not matter as long as King Alus is last. This will unlock a new dungeon which is found east of the floating continent. Take the Nautulus to this location and submerge into the coral when you see a shadow in the water. In the coral there is a cave which is guarded by an Iron Giant who you must defeat.
If you need more help, we've got more Final Fantasy III cheats and also check out all of the answers for this game
Comments for this cheat