This will give you the Pirate’s Treasure Map, which marks key locations in ... But the easiest way is to use the Corsair’s Compass, which you can get by obtaining all four Pirate Relics.

First up is Pirate's Grotto A, which is located immediately south of Costa Del Sol. You can see it marked on the map below ... the Corsair's Compass can also lead you to treasure on the high ...