Letters are secret messages found in bottles. They can be found scattered across the various islands. Once found, you can read the notes in it by accessing it through the in-game menu. The items themselves can be found quite easily once you have synchronized the location, since all collectibles will start to appear as markers once the viewpoint has been established. Below are the locations for each letter, listed by the title of the letter first:
* Letter Title: Earlie Opinions of my Condition
Location: Isla Providencia
Remarks: Very easily located. Just synchronize the isla Providencia viewpoint first. This will reveal the location of the letter. The bottle is marked in the map after this, just follow the specific location of it in the map of the island.
* Letter Title: Taking My Leave
Location: Northeast from Kabah Ruins, coordinates - 798, 191
Remarks: Look for the marked location southeast from Navassa. This can be easily found if you follow the exact coordinates.
* Letter Title: On the Place of My Birthe
Location: Salt Key Bank
Remarks: Very easily located. Just synchronize the Salt Key Bank viewpoint first. This will reveal the location of the letter. The bottle is marked in the map after this, just go to the caverns to the west afterwards.
* Letter Title: My Searche
Location: East from Abaco Island, coordinates - 669, 830
Remarks: Look for the marked location along an uncharted beach. FInd the bottle lying down along the sands.
* Letter Title: On Being a Sage
Location: Southeast from Ambergris Key, coordinates - 144,980
Remarks: Look for the marked location along an uncharted beach. Find the bottle lying down along the sands.
* Letter Title: My First Reverie
Location: Crooked Island
Remarks: Very easily located. Just synchronize the Crooked Island viewpoint first. This will reveal the location of the letter. The bottle is marked in the map after this, just go to the southeastern area of the island.
* Letter Title: A Secret Incomprehensible
Location: Long Bay
Remarks: Look for the marked location inside a cave, along the lower path of it. This leads to a shrine where the bottle can be found on the ground.
* Letter Title: Finding Steadey Work
Location: Corozal
Remarks: This bottle can be found lying down in the southern area. This can be easily found if you look for the tavern nearby the location.
* Letter Title: My Deepening Predicament
Location: Jiguey
Remarks: Look for the marked location at the beaches. This can be easily found if you look near the coconut tree beside the bottle.
* Letter Title: Reste and Repaste
Location: Florida
Remarks: This bottle can be found lying down near the viewpoint . This can be easily found if you look for the letter along the sandy beaches. Florid itself can be found way up north in the in-game map.
* Letter Title: My Apprentyceship
Location: Misteriosa
Remarks: Look for the marked location at the far eastern area from the viewpoint. This can be easily found if you look along the shores
* Letter Title: Peter Beckford the Elder
Location: Abaco Island
Remarks: This bottle can be found lying down near the cadaver in the island. This can be easily found if you look for the patches of grass.
* Letter Title: On Leaving Home
Location: Matanzas
Remarks: Look for the marked location at the northwestern area. This can be easily found if you look along the beaches of Matanzas island.
* Letter Title: The Templar Arrives
Location: Santanillas
Remarks: This bottle can be found lying down in the northwest. This can be easily found if you look for the letter along the beaches in the island.
* Letter Title: What the Voices Saide
Location: Tortuga
Remarks: Look for the marked location at the northern area. This can be easily found if you look along the small sandy bars up north of the location.
* Letter Title: Another Fryghtful Reverie
Location: Cumberland Bay
Remarks: This bottle can be found lying down in the southwest . This can be easily found if you look for the letter along the sandy bars on the shores.
* Letter Title: A Curiose Incident at Sea
Location: Andreas Island
Remarks: Look for the marked location at the eastern area. This can be easily found if you look along the shores of Andreas Island.
* Letter Title: The Assassyn
Location: Cayman Sound
Remarks: This bottle can be found lying down in the southwest . This can be easily found if you look for the letter along the beaches.
* Letter Title: On My Name and Origin
Location: Great Inagua
Remarks: Located on a sandy bar in the southern areas of Great Inagua. You can find it along the beaches.
* Letter Title: The Observatoire
Location: Cape Bonavista
Remarks: This bottle can be found lying down in the beach. This can be easily found if you look for the letter northwest from the first viewpoint.