The Caribbean in Black Flag Resynced is massive — easily the largest open world in the series up to this point. It's easy to feel adrift. Here's everything you can do between story missions, and what's worth prioritizing.
Open World Activities
Treasure Maps and Buried Treasure
Found in chests across the world. Each map shows a specific island, a landmark (rock, tree, ruin), and the dig spot. Buried treasure gives large cash rewards and sometimes elite upgrade plans. Always dig when you find a map — some elite upgrades are only obtainable this way.

Smuggler's Coves
Hidden coastal caves marked with a cave icon once you sail near. Most require underwater access (diving bell for deeper ones). Inside: multiple chests and sometimes a tavern.

Convoys
Groups of military ships (blue icon when close). Risky but rewarding — loaded with metal and money. Escorted by a frigate or man o' war; make sure you're prepared.
Plantations
Smaller restricted land areas (similar to forts but agricultural). Full of guards, chests, and a warehouse with high-value goods. Stealth is the play — shoot the alarm bell, whistle-lure guards one by one, loot the warehouse.

Uncharted Islands
Small islands without a harbor or fast-travel. Worth visiting — they often have Animus fragments, chests, and (on some) dead pirates with treasure maps. Beach the Jackdaw and explore on foot.
Naval Contracts
Picked up from fort harbormasters. Naval-specific missions: escort merchants, sink pirate fleets, patrol trade routes. Pay well and reward metal.
Pirate Hunters
As notoriety rises from attacking military ships, pirate hunter ships chase you. Defeating them reduces notoriety and yields captured ships for your fleet. The highest notoriety sends legendary pirate hunters (upgraded frigates/brigs).

