Skullduggery Island (island quest)

Skullduggery Island is an island on Poptropica.It allows you to travel to islands as you earn doubloons and defeat pirates.

Summary
This island starts with an island called Fort Ridley, a place left in poverty by the notorious pirate Captain Crawfish. The character must acquire a ship through some means. The avatar will be able to recruit crew mates and explore the world on the ship. This may be done in the map layout manner of Nabooti Island, or in an all-new format. There's Captain Crawfish on the seas, however, with a large ship modeled after a bird of prey. One part of the mission is to defeat this terrible pirate in nautical battles, and the other is searching for a hidden treasure.

Spoilers
The treasure is hidden in skullduggery island and is obtainable once you beat a certain pirate.

Get cargo and doubloons by trading in a clockwise circle, or by killing monsters and pirates, or by collecting salvage.

Trivia

 * It is really Skullduggery Islands because there are more than one island in the game. Islands in the game are Fort Ridley,Dragon Cove (like china), Bouffant Bay, Parrot Port, Golden Harbor (arabia), Pirate Outpost, and skullduggery island (hidden until end).
 * The highest amount of Doubloons is 18,725,999 doubloons.
 * Fastest ship goes 13 kms per minute.
 * Skullduggery is the third island with foreign language written. First and Second was Time Tangled and Counterfeit.
 * There is a serious glitch since 22 June 2010 where new players won't get the Cabin Boy and the Cook, and the money data will be reset once they move to another room.
 * Dangers you encounter are small pirate ships, whirlpools, thunderclouds, rocks, and sea monsters (crab, octopus, puffer fish).
 * Lots of white clouds, but some have funny shapes! Known shapes include bone, skull and crossbones, smiley, heart..add more if you see.
 * You can pick up salvage to get cargo and doubloons.
 * If you kill a monster or a pirate ship, you get salvage.
 * You can either shoot them repeatedly or run them into each other.*Ha, Ha!
 * There is a glitch it is that if you shoot a cannonball onto land it makes a water splash.
 * There seen an invisible ship glitch.
 * There are two flags; one is a jolly rodger on pirate outpost, one is a black flag on skullduggery.
 * Ships you can get are: raft, jimminy rigger, clarabelle, sea sultan, koi, steaming fury,and the Phoenix Warbird.
 * If you lure puffer fish into whirlpool, it doesn't die.
 * Lure a puffer fish to a pirate ship. It will expand and disintegrate the pirate!
 * Pirate ships are around pirate outpost, rock shoals are around golden harbor, monsters are around dragon cove, thunderclouds and whirlpools are around Bouffant bay.
 * The Phoenix Warbird is the most powerful ship in Skullduggery.