Treasure map is an item found in the message in a bottle on Aminishi by Cap'n Ekahi where the rowboat is. It leads the player to an island, where they can meet Swabbie Steve.
The message in a bottle that contains this treasure map is currently visible. (wrong?) Once a message in a bottle is found and when a player has walked near its spawn location when it was visible it will always be visible, unless the message in the bottle or its treasure map is in the player's bank or inventory.
Transcript[]
The following text is transcluded from Transcript:Treasure map (The Island Which May or May Not Have Monkeys on It).
Ook! Oook ooky ook ook!
[...some shakily written human words follow...]
Set sail fer The Island Which May or May Not Have Monkeys on It (trademark pending) and help yerself to a whooping big treasure while yer at it.
-Ook| NPCs | |
| Message in a bottle |
 Milky Bay The Goon Docks Christmas Island The Island Which May or May Not Have Monkeys on It Springbreak Island Cannonball Run Eisetes Cretor The Hamlet Quis-land Agar Atoll |
| Treasure maps |
 Milky Bay The Goon Docks Christmas Island The Island Which May or May Not Have Monkeys on It Springbreak Island Cannonball Run Eisetes Cretor The Hamlet Quis-land Agar Atoll |
| Islands |
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| Rewards |
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