Assassin’s Creed 4: Black Flag is a massive game and the map reflects that as well.
You will be visiting many locations in the game and there are underwater ones as well. The game is said to be gigantic with 50 locations.
There’s also a gameplay trailer released for the game which shows Edward Kenway doing things that a pirate does, sprinkled with a little Assassin jobs.
Check out the map below.