In the left hand lower corner is the secret island. but you must beat captain c. before you can access it.
The treasure is on a secret island which is revealed after you find all pieces of the map, called Skullduggery. But I don't know how to get it yet.
Defeat the captain and go to the secret island of the Captain
Sail anywhere near the new island or the Pirate Outpost and he will eventually find you and attack.
I think you go on Skullduggery and there is a secret island that appears on the map after all five pieces are assembled.
The 5 pieces of the treasure map reveal another small island (Skullduggery) where a secret treasure is buried. Once you get rid of Captain Crawfish, it will be safe for the villagers to recover it, and the Governor will send you to dig it up.
There is a secret island on Skullduggery Island, and in fact that is its name : Skullduggery. It will appear on the treasure map (and actually in the open sea) when all five pieces of the map are assembled. It is near the bottom center, between the Pirate Outpost and Golden Harbor.
skullduggery island!
Fort Ridley is the first place you go on Skullduggery Island. Its impossible to miss it.
Bouffant Bay is located northeast of Fort Ridley on Skullduggery island Poptropica.com
The bank on Skullduggery Island is the Golden Harbor Bank, located in the Arabic-themed port at the lower right on the island map.
There is a dock at the bottom side of the small island, Skullduggery. The island appears when you have collected all 5 of the pieces of the Treasure Map.
Although his name is not given, the Governor lives in the house to the far right of the island. He will show you the parchment that indicates the Treasure. Once you defeat Captain Crawfish, he will give you the secret location of the Buried Treasure on the small island called Skullduggery. The headstone for the historic governor, "Governor Ridley", is outside the house.