Usually Parrot Port, for between 32 and 40 doubloons.
Parrot port
Parrot Port has the highest price on medicine. It is the island in the easternmost island.
The amounts of cost for medicine, silk, spice, and grain are changing all the time. The best way to get profits is to go to each island clockwise, buying the cheapest thing and selling it at the next island for a lot of money.
dragon cove by far
Parrot Port
Probably the most difficult island on poptropica is the latest one, Skullduggery. However, it is a matter of opinion. Besides Skullduggery , thay are pretty much the same.=)
What I do is start at Bouffant Bay then I buy all the Medicine I can hold. Then I go to Parrot Port and sell it all for a great profit. I beat the Skullduggery Island but when I'm bored I go on poptropica and keep trading those things and so far I have 2,641,998 doubloons. =D
At Bouffant Bay, with a high price around 40. You can buy it at Dragon Cove for as little as 13 to 15.
Either Parrot Port or Golden Harbor, usually Parrot Port. Prices constantly change. Parrot Port is the exception to the clockwise trading route because nothing is ever very cheap to buy there.
You trade going clockwise. This allows you, most of the time, to buy something cheaply and sell it for much more at another island -- the one clockwise from it. Dragon Cove : always cheapest for silk, pays the most for spice Bouffant Bay : always cheapest for medicine, pays the most for silk Parrot Port : nothing cheap to buy, pays the most for medicine Golden Harbor : always cheapest for grain, pays second-most for medicine Pirate Outpost : always cheapest for spice, pays the most for grain
The price is highest at Bouffant Bay, 2 to 3 times what it costs at Dragon Cove.
Start off in one island, and buy the cheapest thing there the most you can. Next, go to the other island clockwise and sell the most expensive item which should be what you have of most of. Then start the process again.
It has the highest price at Bouffant Bay, averaging 32 to 40.