(spoiler request) Where is the dying pirate treasure?

[Xelian]

SPOILER ALERT
Mark the text below to read

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It is on the small Island near the entrance to the Griffin Island in Arlania
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[Writhan]

Xelian already reveiled the location.

But, you can look at the map from your inventory. Then you can actually see where the treasure is, by looking for that particular spot on the world maps