Port Royal
First Visit
Upon entering this world, you'll hear some people screaming. Head down to the port. At the Rampart, there will be a save point and a Moogle Shop. Upon reaching the port, you'll encounter Captain Barbossa chatting with Pete. He'll send some pirates out to attack you. At first, they are immune to all attacks. A cutscene then reveals their true forms. Pete will also say that they are weak against magic; use magic to take them out.
Some of the pirates have ran off into the Town to go after a Medallian. One is shown kidnapping a woman, Elizabeth Swann. A man, Will Turner, goes after them, only to be confronted by Heartless. After defeating the Heartless, run back to the port, where you'll see the pirate ship out to sea.