The Map is a navigational item in Sea of Thieves. Players use maps to locate treasure and navigate the sea.
To use a quest /voyage map, locate it on the radial map wheel (PC - 'E') to place it in the character's hands, then lift it to view (PC - LMB). Players can also hold up their quest map for other players to see. Riddle Maps are similar in that they help a player find a location, but with words rather than images.
The navigational map is located on the Map Table on a player's ship. This table is used to navigate between islands.