Isla de Muerta is an island featured in the 2003 film Pirates of the Caribbean: The Curse of the Black Pearl. It is a mysterious land where the Black Pearl's pirate crew hide their looted treasure. It is filled with the cursed Aztec treasure that the pirates returned.
According to Jack Sparrow, Isla de Muerta (approximate Spanish translation, "Island of Death") is an island that cannot be found, except by those who already know where it is hidden. To locate it, Captain Sparrow uses his unique compass — rather than pointing north, it points to what its holder wants most. What Sparrow wants is his ship, the Black Pearl, anchored at the island and now captained by his mutinous first mate, Captain Barbossa.
Mysteriously shrouded in an everlasting fog, the isle is surrounded by a graveyard of sunken ships; its waters swarm with hammerhead sharks and shoaling fish.
From the air, the island resembles a human skull. It appears to be largely unexplored, save for interconnecting caves where Captain Barbossa's crew hoard their looted treasure. Here is where the dreaded Chest of Cortes containing the cursed Aztec gold lies hidden.
There seems to be little that is interesting on the island, apart from the caves and the hoarded treasure the Black Pearl crew has acquired during their many years of searching for the last cursed coin and the one remaining blood sacrifice.
In Pirates of the Caribbean: Dead Man's Chest, it's learned that the island was reclaimed by the sea, taking with it both the cursed Aztec treasure and the uncursed mountains of gold that Barbossa's crew had hoarded while they were cursed. It was with this gold that Jack Sparrow had agreed to pay his new crew, but had to change his plans when it sank with the island. Barbossa himself was only retrieved due to the intervention of Tia Dalma, who did so and also restored him to life before the events of Dead Man's Chest.
Like with Dead Man's Chest, The island is only mentioned in At World's End, by Barbossa as a reminder to Jack of their last confrontation.
Read more about this topic: List Of Locations In Pirates Of The Caribbean