While standing on a map (the current map), any other maps which are directly connected to the current map will be loaded and shown as well. This allows seamless and continuous movement from one map to another. Only connected maps which are "in range" will be loaded. A map is considered "in range" if any part of it is sufficiently close to what the game screen is showing. That is, if the player is just a few tiles away from being able to see the connected map, it is "in range".