The path to the top of the Pirate Outpost is a twisting one, as always on Poptropica. Follow the signs to the Corsair Cannonry at upper right.
The Cannonry is the location of the skilled Cannoneer, who you may hire once you can afford him (20,000 doubloons). Climb onto the roof, then across to the left, to the mast where the pirate flag is flying. On the mast is the Cannon Starter Kit (fuses), which fires any of the cannon at the outpost. Just below is a small barrel of explosives.
(*By pushing the barrel off, into the water, and below the Golden Tooth, you can fire the cannon at left, hitting the barrel and revealing the map piece behind the tooth.)
do you mean skullduggery??
You don't climb it. You have to find the cannon starting kit and explosives barrel on that island and push the TNT under the yellow tooth of the skull, fire the nearbye cannon and the map piece will be where the tooth was.
You don't!
its the teeth on the skull
The map on Pirate Outpost, Skullduggery Island is in the giant skull's golden tooth. You have to get up to the top of the giant skull and shoot a cannon at the tooth and you will get the map piece. It's hard though.
First, you go to the island due west of the main island. Climb up onto the dock, and past the pirate outpost sign. Go past the trading post, and climb the large skull. Go up the chain an voila!
The giant gold-colored tooth is in the rock skull of the Pirate Outpost. The golden tooth hides one of the map pieces.
There is no key card in skullduggery island.
it is the skull with the cavity on it.
Swim left from the trading area, beneath the giant stone skull. One cannon is at the far left and you can climb up from there. To fire a cannon, you need the Cannon Starter Kit (fuse) from the very top of the outpost's mast.
You find the cannon starting kit and the TNT barrel. Push the TNT barrel underneath the gold tooth and fire the closest cannon to the left on the lowest cliff of the giant skull. Fire the cannon using the starter kit.
Keep going left past it and jump on the boxes and things and find your way up from there.