The Misteriosa treasure at (271, 178) is behind the northern synchronization point near the waterfall and fountain pond area, and you need the treasure map from Ambergris Key before digging it up.
The chest at (271, 178) is the buried treasure marked by the Ambergris Key treasure map in Assassin’s Creed Black Flag Resynced. Once you have the map, use the northern synchronization point on Misteriosa, turn back toward the ruins instead of jumping down, and look for the dig prompt beside the water feature.
- Exact Misteriosa 271, 178 treasure location
- How to get the Ambergris Key map and dig up the Misteriosa treasure in Assassin’s Creed Black Flag Resynced
- Route from the northern synchronization point
- Misteriosa 271, 178 treasure reward
- Common Misteriosa treasure map mix-ups
- Related Misteriosa to Kingston treasure
- Frequently Asked Questions
Exact Misteriosa 271, 178 treasure location
| Detail | Answer |
|---|---|
| Map source | Ambergris Key |
| Chest coordinates | 271, 178 |
| Island and region | Misteriosa, Serranilla |
| Nearest fast travel point | Northern viewpoint / synchronization point |
| Main landmark | Waterfall, cave flowers, fountain pond |
| Dig spot | Grass or mound on the floor beside the water feature |
Fast travel to the northern viewpoint on Misteriosa. From the synchronization point, do not leap down to the lower area. Turn back toward the ruins, move through the cave and flower-covered path toward the waterfall and fountain pond, then search the floor and grass mound immediately beside the water feature for the dig prompt.
KEY!This is the chest shown by the Ambergris Key treasure map. It is not the separate treasure map found on Misteriosa that sends you to Kingston.
How to get the Ambergris Key map and dig up the Misteriosa treasure in Assassin’s Creed Black Flag Resynced
This route takes you from the Ambergris Key treasure map to the buried chest on Misteriosa at 271, 178.
STEP 1/12
<
p class=”vg-step-title” data-vg-step=”1″ data-vg-of=”12″ id=”enter-the-ambergris-key-sea-tunnels” style=”margin:16px 0 6px”>Enter the Ambergris Key sea tunnels
Go underwater at Ambergris Key and start through the sea tunnels.

STEP 2/12
Follow the jellyfish cluster
Swim toward the big cluster of jellyfish, which marks the correct tunnel direction.

STEP 3/12
Watch Edward’s breath
The swim is long, so keep Edward’s breath under control until you reach the far side.

STEP 4/12
Climb through the ruins
After surfacing, move through the ruins, go up and around to the right, and climb into the hole in the wall.

STEP 5/12
Reach the corpse with the map
Climb into the upper opening and collect the treasure map from the body below.

STEP 6/12
Check the codex coordinates
Open the codex entry and note the destination coordinates: 271, 178 on Misteriosa.

STEP 7/12
Travel to Misteriosa
Fast travel to Misteriosa if available, or sail there.

STEP 8/12
Use the northern synchronization point
Pick the northern viewpoint, since it puts you closest to the buried treasure.

STEP 9/12
Do not jump down
Stay on the upper route and turn back toward the ruins instead of dropping from the viewpoint.

STEP 10/12
Head for the waterfall caves
Move toward the waterfall and cave area behind the viewpoint.

STEP 11/12
Pass through the flowers
Continue through the flower-covered cave path toward the water feature.

STEP 12/12
Dig at the floor marker
Look on the ground beside the pond or fountain area and dig when the prompt appears.

Video help
Route from the northern synchronization point

If you already have the Ambergris Key map, the final run is short. Start at the northern synchronization point on Misteriosa and resist the obvious jump down from the perch. The treasure is behind you, back toward the ruins.
Follow the upper path into the ruin-side cave area, aiming for the waterfall and the patch of tall white flowers. The dig prompt appears on the floor near the fountain pond, in the grass or mound right beside the water feature. If you are standing at the statue and nothing appears, shift around the nearby grass instead of leaving the area.
From the northern synchronization point, turn around and stay high; jumping down usually sends you away from the Misteriosa 271, 178 dig spot.
Misteriosa 271, 178 treasure reward
| Reward | Details |
|---|---|
| Heavy Shot Strength upgrade plan | The ship upgrade plan from the Misteriosa 271, 178 buried chest. |
| Reales | Expect a Reales payout; player records place it around 3,000-3,600 Reales. |
Digging up the chest gives you the Heavy Shot Strength upgrade plan for the Jackdaw. The Reales payout is listed differently across player records, with 3,000 Reales and 3,600 Reales both appearing, but the upgrade plan tied to this chest is the important reward.
Common Misteriosa treasure map mix-ups
The biggest mistake is searching Misteriosa for the map. For this chest, the map comes from Ambergris Key, and the dig site is on Misteriosa. The map found on Misteriosa is a different treasure map entirely.
Another easy mistake is dropping to beach level or wandering the temple ramps. The 271, 178 chest is in the upper northern area behind the viewpoint, close to the fountain and pond. If the prompt does not show immediately, stay beside the water feature and check the grass or mound around it rather than moving to another landmark.

After this chest, the nearby search many players run into is the separate Misteriosa treasure map around (272, 175). That map points to Kingston (631, 152) and is tied to the Gilded Hull design, so keep it separate from the Ambergris Key map that leads to Misteriosa (271, 178).
Frequently Asked Questions
Where is the Misteriosa treasure at 271, 178?
It is behind the northern synchronization point on Misteriosa, near the waterfall and fountain pond area. From the viewpoint, turn back toward the ruins, pass through the flowers by the cave, and dig beside the water feature.
Where do you get the treasure map for the Misteriosa 271, 178 chest?
You get the map at Ambergris Key. Swim through the sea tunnels, climb through the ruins, and collect the map from the corpse in the upper ruin path.
What does the Misteriosa 271, 178 treasure give you?
The chest gives the Heavy Shot Strength upgrade plan for the Jackdaw, plus a Reales payout listed around 3,000-3,600 Reales.
Is this the same as the Misteriosa treasure map that sends you to Kingston?
No. The Ambergris Key map sends you to Misteriosa (271, 178). The separate map found on Misteriosa sends you to Kingston (631, 152) for the Gilded Hull design.
What should you do if the dig prompt does not appear?
Stay near the fountain pond behind the northern viewpoint and move around the grass or mound beside the water. The prompt can be picky if Edward is too close to the statue or too far from the floor marker.







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