You earn doubloons at first by collecting salvage when you are sailing. You will find cargo floating in the water, scraps that boats have left behind or where a boat sank. Most salvage is found above and around Dragon Cove, and among the reefs between Parrot Port and Golden Harbor.
Later, you earn doubloons by buying and selling cargoes, and by recovering salvage from sea creatures and pirates that you sink.
(see related question)
Nothing. Captain Crawfish was there. But you don't exactly do anything on Skullduggery island. You defeat Crawfih on sea.
here's the deal, YOU CAN'T DO THAT. you can sail out to sea on a boat, but you can't swim out to sea.
Skullduggery sea is in the bottom left on the map
The blimp is at Fort Ridley, the middle island, next to your ship/the sea. Hope this helps!
dont go in your boat just go in the water for a second and then jump out
I have defeated a sea monster, but there is more than one, so it depends which one you are defeating.
Yes. You can still sail and fight pirates and sea monsters, but there is little else to do except amass a huge fortune in doubloons. Be aware that you still lose doubloons if you are sunk, so you could be risking millions. Nothing to worry about once you have won.
After years of living on dry land, the old sailor wants to go back to sea again.
The sea monsters have "health meters" just like the pirate ships. If you shoot them enough times, they die and release salvage that you can collect.
Your Life gauge shows whenever a pirate ship or a sea creature is nearby.
Once you have the largest ship (the Phoenix Warbird), and hire the Cannoneer, you can defeat Captain Crawfish. Sail to the sea near Skullduggery to fight him. Once you win, return to Fort Ridley and the Governor will give you the location of the buried treasure (and a special shovel). Dig up the Buried Treasure on Skullduggery Island to win the game. (see solution at the related question)
You have to defeat ships and sea monsters and pick up the cargo that they leave behind when they sink.