This page is a guide to the treasure map you find in Cumberland Bay in Assassin's Creed IV Black Flag
Note: Visit the Tavern in Salt Key Bank to reveal the location of this treasure map.
Treasure Map Location
The treasure map itself can be found on a cadaver at Cumberland Bay, at coordinates (679,371), on the shore at the southeast corner of the island
Treasure Map Tool
This is the treasure map you find:
Coordinates indicate (335,469).
Note that the treasure chest itself is NOT located in Cumberland Bay (where you got the treasure map from), but rather in Pinos Isle:
Dig Site Location
Set a custom marker here at coordinates 335,480
When you get there, you should recognize the stone temple, and the tree, which are pictured on the treasure map:
Dig near the tree to find the buries treasure chest:
Reward is 3,000 Reales and design plans for Aquila's Wheel
