Nothing. You can see the pirate treasure flag there, but there is nothing to do.
Once you have the largest warship, and have used it to beat Captain Crawfish, go back to the governor, who will give you the directions to the buried treasure.
When you have all of the map pieces from the 5 trading islands, the 6th island (Skullduggery) appears near the Pirate Outpost. You cannot do anything there until you have beaten Captain Crawfish. This will require the largest ship, the Phoenix Warbird, as well as hiring the Shipwright and Cannoneer. Once you have beaten Captain Crawfish, go to see the governor and he will give you the directions to the buried treasure on the hidden island.
I don't think you need all the helpers but it would certainly help! Once you have the warbird ship, sail the ship in waters near the island. Captain Crawfish will come and you must sink him with your cannons! Good luck!KATIE :P
Captain Crawfish chases you and you have to go away to another island.
They die.
Collect the five map pieces (one on each of the trading islands) and join them to see the sixth island, Skullduggery. Once it appears on the map, you can actually go there, but nothing happens there until the end of the game. (see the related question)
we are die
In a thunderstorm, you rapidly lose health, unless if you've a massive ship.
nothingNothing, you just have the joy of beating it.
ThE baby has died.
beating battles but happens rarely
So there is someone to assist the captain and to takeover if anything happens to the captain.
you can do is cat the 3 legend Pokemon