Port Royal

Port Royal is divided into four main areas, only one of which is actually the town of Port Royal. Sora and the gang land on the Rampart of the town's fort, which holds several defensive cannons. In addition, one can look inside the fort to see a prison area. There are two sets of stairs, the left one leading down to the Harbor. This is where Sora first encounters the undead pirates. From here, the bridge leads into the main Town area, which is being attacked by heartless and pirates. A road from here leads back to the fort, but Sora will want to head back to the harbor to meet up with Jack Sparrow.
The second main area is the two ships, The Interceptor and The Black Pearl. These ships are where you can sail to the other main areas, although they can both be attacked by pirates. If you are losing, you can retreat inside, where the pirates won't follow. These areas, the Interceptor's Ship's Hold and the Black Pearl's Captain's Stateroom also hold save points.
The main important area for the first storyline is the notorious Isla de Muerta, "an island that can not be found, except by those who already know where it is." Sora's ship lands on the Rock Face, an outcropping that leads to the inner caves. From the Cave Mouth, Sora accesses the Powder Store, where pirates wait in ambush behind explosive gunpowder crates. Sora will need to detonate these crates to create paths for the precious moonlight. Next is the Moonlight Nook, a small area that serves as a perfect battleground. The last area of Isla de Muerta is the Treasure Heap, a cave where the pirates store all the loot they have gained within their cursed years. They look forward to the day when the curse will be lifted, and they can spend their ill-gotten gains at long last. Smack dab in the center is the cause of all the trouble...the cursed stone chest containing the 882 gold coins. This area serves as the final dueling grounds with Barbossa himself.
Only in the second story line can Sora access the fourth main area, the Ship Graveyard. Currents carry the wrecks of any ship sunk in the area around Isla de Muerta to this forsaken place, and when Luxord sinks the Interceptor, it too is carried here. Sora begins in the Interceptor's Hold, one of the few remaining pieces of the once proud ship. From here, Sora can go to Seadrift Row, a long corridor consisting of the remains of destroyed ships. The last place is Seadrift Keep, a shipwreck that bears a resemblance to a makeshift fort. All throughout Port Royal, the chests can be hard to find because of the dreary landscape. In one of the "rooms" in the Ship Graveyard, an anchor can be attacked, making it swing across the room and damage anything in its way.