To find the Petite Caverne treasure at 863, 235, first loot the Cayman Sound treasure map, then fast travel to Petite Caverne, enter the cave, swim left toward the waterfall, climb the platform, go up the ramp, and dig behind the waterfall rocks.
In Assassin’s Creed Black Flag Resynced, this buried chest is a map-source and destination chain: the map starts at Cayman Sound, but the treasure is dug up inside Petite Caverne. The important distinction is that Petite Caverne also has its own separate treasure map, and that one sends you away to Tulum instead of solving the 863, 235 chest.
Petite Caverne 863, 235 treasure location
| Item | Location |
|---|---|
| Treasure map source | Cayman Sound, northwest coast |
| Map coordinates | 298, 311 |
| Treasure destination | Petite Caverne / Petit Caverne |
| Treasure coordinates | 863, 235 |
| Main landmark | Behind the rocks behind the waterfall |
The chest at 863, 235 is at Petite Caverne, also written as Petit Caverne in some map labels. You need the Cayman Sound Treasure Map from 298, 311 before the ground spot behind the waterfall gives you the dig prompt.
Do not confuse it with the Petite Caverne Treasure Map. That separate map starts at Petite Caverne (862, 237) and points to Tulum (40, 372), so it will not solve the 863, 235 dig spot.
Cayman Sound map pickup location
KEY!The required map is on the northwest coast of Cayman Sound. Look for the small shoreline cluttered with broken crates and barrels; the map is beside the fallen body there, and looting it adds the clue for Petite Caverne 863, 235.
Loot the Cayman Sound Treasure Map before entering Petite Caverne; without it, the ground behind the waterfall will not offer the dig prompt.
How to dig up the Petite Caverne treasure at 863, 235
Start with the Cayman Sound Treasure Map, then follow the cave path to the waterfall dig spot in Petite Caverne.
STEP 1/12
Go to Cayman Sound’s northwest coast
Sail to Cayman Sound and head to the northwest coast, where the needed map is found at 298, 311.
STEP 2/12
Loot the body by the crates
Pick up the Cayman Sound Treasure Map beside the fallen body near the broken crates and barrels.
STEP 3/12
Check the map coordinates
Open the treasure map entry and note the target as Petite Caverne at 863, 235.
STEP 4/12
Set Petite Caverne as your destination
Set the coordinates to Petite Caverne and fast travel there.
STEP 5/12
Cross the outside platforms
From the arrival point, move forward over the outside platforms toward the cave entrance.
STEP 6/12
Jump into the cave water
Once inside the cave, drop into the water ahead of you.
STEP 7/12
Swim left toward the waterfall
Head left toward the waterfall and hug the rocks as you move around the water.
STEP 8/12
Climb onto the nearby platform
Pull yourself up onto the platform beside the waterfall route.
STEP 9/12
Go straight up the ramp
Continue straight ahead and up the ramp in front of you.
STEP 10/12
Watch for enemies in the den
If the smuggler den is still uncleared, deal with or avoid the enemies before searching the waterfall area.
STEP 11/12
Turn back toward the waterfall
Spin around toward the waterfall once you reach the upper area.
STEP 12/12
Dig behind the waterfall rocks
Move behind the rocks behind the waterfall and use the dig prompt on the ground to uncover the treasure.
Video help
Common Petite Caverne treasure mistakes
KEY!The most common mistake is reaching 863, 235 without the Cayman Sound Treasure Map. The coordinates can be right and the ground can still stay inactive because the matching map is what unlocks the dig prompt.
Another mix-up comes from the separate Petite Caverne Treasure Map. That map belongs to the Petite Caverne to Tulum route, not the Cayman Sound to Petite Caverne route.
Inside the cave, do not spend your search around the dock or the wrong shoreline. The dig spot is in the waterfall and campfire region, behind rocks near the waterfall, and uncleared smugglers can interrupt you while you line up the prompt.
Heavy Shot Storage reward and nearby routes
| Route | Reward |
|---|---|
| Cayman Sound to Petite Caverne | Heavy Shot Storage Ultimate Plan + 3,000 Reales |
| Petite Caverne to Tulum | Fire Barrel Storage Ultimate Plan + 3,000 Reales |
| Pinos Isle to Cayman Sound | 4,000 Reales |
| Misteriosa to Kingston | Gilded Hull design plan + 3,000 Reales |
The 863, 235 chest gives the Heavy Shot Storage Ultimate Plan and 3,000 Reales. Some reward labels mix this chest with Mortar Storage or Fire Barrel Storage, but the Cayman Sound to Petite Caverne route is the Heavy Shot Storage chest.
After this treasure, keep the route names separate: the place where you collect a map and the place where you dig are often different. These are the nearby chains worth knowing without turning this into a full treasure-map roundup.
Frequently Asked Questions
Can you dig up the Petite Caverne 863, 235 treasure without the Cayman Sound map?
No. The Cayman Sound Treasure Map is required before the dig prompt appears at Petite Caverne 863, 235.
Where is the Cayman Sound Treasure Map?
The Cayman Sound Treasure Map is on the northwest coast of Cayman Sound at 298, 311, beside a fallen body near broken crates and barrels.
Is Petit Caverne the same place as Petite Caverne?
Yes. For this 863, 235 treasure route, Petit Caverne and Petite Caverne refer to the same destination.
Why is there no dig prompt at 863, 235?
You are usually missing the Cayman Sound Treasure Map or standing in the wrong part of the cave. Get the map first, then search behind the rocks behind the waterfall after swimming left, climbing the platform, and going up the ramp.
Is this the same as the Petite Caverne Treasure Map that sends you to Tulum?
No. The Petite Caverne Treasure Map is a separate route from Petite Caverne (862, 237) to Tulum (40, 372) for the Fire Barrel Storage Ultimate Plan and 3,000 Reales.
Leave a Reply