The Cave is the horror attraction that is the location of Five Night's at caves. It is purely a cave with a few built features.
The cave is the area in which Fazbear Entertainment chucked out all of their animatronics after their closure. Many years later, after the closure of Fazbear Fright's first attraction, they tried to look more into the events that happened at Freddy Fazbear's Pizza. They eventually tracked down the cave and made it their new attraction.