The entrance of Assassin's Creed 4 Black Flag dlc is at the southernmost tip of the central area of Port-au-Prince. The dlc introduction of "Assassin's Creed 4: Black Flag" shows: Go to the south of Defayet's official residence, that is, the southernmost part of the central area of Port-au-Prince, that is, the entrance of the forest trail of Dongbopong Farm, and climb a house with a black tile roof near the entrance of the trail. Therefore, the entrance of Assassin's Creed 4 Black Flag dlc is at the southernmost tip of the central area of Port-au-Prince.