Cave of Treasures

Cave of Treasures (秘宝の洞窟 Hihou no doukutsu) is a cave to the east of Ilias Port, said to contain the treasure of the legendary pirate Selene.

History
Luka visits the cave after receiving information from Amira that the cave might contain the Poseidon Bell, a legendary item said to allow any ship to steer through the roughest of storms.