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Unrevisitable locations
Unrevisitable locations are locations accessed automatically during the storyline which cannot be returned to after a certain point in the game. They can typically be visited once and players aren't usually warned in-game that they won't be able to revisit them.
History
Final Fantasy Adventure & Adventures of Mana
The battle arena in Glaive Castle is unrevisitable after Sumo slays a Jackal for the second time during the introduction.
The Airship can only be accessed before triggering the cutscene where Julius confronts Sumo on a catwalk while he attempts to rescue Fuji.
The Dime Tower can only be visited until Sumo and Marcie defeat the Garuda guarding the structure, as it will sink into Glass Desert once again.
Once the player completes Dime Tower and uses the waterfall near Glaive Castle to get access to the Mana Temple, the entire world map becomes inaccessible.
