Cayman Sound Treasure Map: Location and Rewards
The Cayman Sound treasure map in Assassin’s Creed IV: Black Flag leads to a buried chest on Cayman Sound, at coordinates 327, 334. Dig at the small island’s marked spot to collect 4,000 reales; the map is found at Abaco Island, at coordinates 479, 487.
Where to find the Cayman Sound map
The map is not on Cayman Sound itself. It is on Abaco Island, a small location in the northern part of the game world. Sail to Abaco and look for the map’s collectible marker; the coordinates displayed on the map are 479, 487. Pick it up to add its drawing and treasure coordinates to your collection.
Coordinates in Black Flag are shown as two numbers on the world map. Use them to identify the relevant island and then search on foot: the coordinates do not function like a precise GPS pin that takes Edward directly to the chest. If you have already collected the map, you can check it again in the game’s map or collectibles interface rather than returning to Abaco.
Where to dig on Cayman Sound
Travel to Cayman Sound and head to the small island indicated by the treasure-map illustration. The buried chest is at coordinates 327, 334. Once ashore, compare the shape of the island and its visible landmarks with the drawing, then walk to the marked patch and use the on-screen dig prompt.
- Map location: Abaco Island, 479, 487.
- Buried chest: Cayman Sound, 327, 334.
- Required action: reach the chest’s patch of ground and dig when prompted.
The map’s sketch is useful because the numeric location narrows the search to Cayman Sound, while the drawing helps distinguish the exact beach or island feature. If you reach the right coordinates but cannot find the dig spot immediately, explore the island on foot and match the outline and landmarks rather than circling the coastline by ship.
What the treasure rewards
The Cayman Sound chest contains 4,000 reales, the game’s currency. This is a direct cash reward, not a ship upgrade, crafting resource, outfit, or collectible item. The amount is added when Edward opens the buried chest.
Treasure maps are optional exploration rewards. They are worthwhile if you are already visiting Abaco or Cayman Sound, or if you want to build up money for purchases and upgrades. They are not a special mission prerequisite, and you do not need to complete a separate quest to dig up this chest once you have access to the location.
How treasure maps work
Each map pairs a coordinate reading with an illustrated view of the place where the chest is buried. In practice, the process is two-stage: first find and collect the map, then travel to the destination and interpret the drawing to locate the exact digging point.
- Collect the map at its source location—in this case, Abaco Island.
- Read the destination coordinates: 327, 334 for Cayman Sound.
- Sail to the destination and land on the relevant island or shore.
- Use the illustration and nearby scenery to find the precise spot.
- Approach the patch and activate the dig prompt to claim the reales.
There is a common point of confusion: the first coordinates people encounter may be the map’s pickup location, not the chest location. For this treasure, 479, 487 identifies Abaco, where the map is found; 327, 334 identifies Cayman Sound, where the reward is buried.
Finding the spot if the chest does not appear
If you arrive at Cayman Sound and do not see a chest, remember that buried treasure is not normally a visible container waiting on the beach. You need to stand at the correct patch of ground and use the interaction prompt. The map may also show a wider view than the immediate digging area, so check the island’s shape and landmarks carefully.
- Confirm you are at Cayman Sound, not Abaco; the latter is the map’s location.
- Check that you are using the treasure destination coordinates, 327, 334.
- Go ashore and search on foot; the ship’s map view will not reveal the exact dig point.
- Compare the map drawing with the local terrain and look for the prompt as you approach the right spot.
If the map is already in your inventory, picking it up again is unnecessary. Conversely, if you have not collected it, visiting the chest’s island may not provide the same clear visual guidance as having the map. Make sure the Abaco collectible has been obtained, then check the map again.
Frequently Asked Questions
Where is the Cayman Sound treasure in Black Flag?
The buried chest is on Cayman Sound at coordinates 327, 334. Land on the island and use the map illustration to locate the exact place to dig.
Where do I find the Cayman Sound treasure map?
Collect it on Abaco Island at coordinates 479, 487. Abaco is the map’s pickup location, not the location of the chest.
What is the Cayman Sound treasure reward?
The chest gives 4,000 reales. It does not contain a ship upgrade or a special piece of equipment.
Do I need the map before digging up the treasure?
The map supplies the location drawing and coordinates and is the intended way to identify the spot. Collect it on Abaco, then use it to guide your search on Cayman Sound.
Why can’t I see the treasure chest on Cayman Sound?
It is buried rather than presented as an ordinary visible chest. Search on foot at the correct spot and use the interaction prompt when it appears.
Are 479, 487 the Cayman Sound chest coordinates?
No. Those coordinates point to Abaco Island, where you collect the map. The Cayman Sound chest is at 327, 334.
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