Complete the indicated task to access the corresponding uncharted island.
Cliche Island: Collect the five pieces of Captain Taint's map. Start the quest to help him get his treasure. He tells you it is on Cliche Island and that a Mutinous Captain may have it. You can also find Mutinous Pirates with the captain on X Island. Just west of X island is Chicken Island, which has the parrot feather required for a different quest. Start at the dock at Chicken Island, then move straight west until you see a small island slightly to the north. Dock there to find Cliche Island and a treasure chest.
Hot Island: Move south from the western side of Spider Island.
Skull Island: After invading the North Pole, get on your ship and travel south from the dock. Look for a few rocks sticking out of the water and a spear with a skull on it.
Complete the following tasks to unlock PlayStation3 trophy rewards.
Orque Imposter (Bronze): Convince an Orque Guard you are an Orque.
Death of a Penguin (Bronze): Kill the Evil Nun.
Primp V.I.P. (Bronze): See all 20 of Madame Primp's Outfits.
Well Educated (Bronze): Get an Engineering Degree.
Raise Your Mast (Bronze): Go Sailing in a Pirate Ship.
Konichiwa (Bronze): Learn to Speak Japanese.
Mystic Transport (Bronze): Discover all 44 Teleporting Outhouses.
Dispenser of Justice (Silver): Kill 3000 enemies.
To Serve Men (Silver): Kill Wortten.
Ruin Christmas (Silver): Kill Santa Claus.
A Tale of Two Endings (Silver): Watch Both Game Endings.
A True Hero (Gold): Reach Level 20.
Frozen Justice (Gold): Kill the Talking Tree.