In Chika, there are only four exits to the surface-- at the north, south, east, and west. The northern entrance would be hidden behind a waterfall. There is a small opening that really is not big enough to call a cave. If one were to go into this opening, they would come across what would look to be a dead end. There is only a flat wall, and some rocks sticking out at the side, while some are on the floor. Those who reside in Chika would know which rock to push down in order to enter the village. After doing that, the stone wall will slide open, revealing a staircase going down into the village. Those who enter will first encounter a balcony after the stairs, which overlooks the whole village. At the balcony, there is a gap at the side for the elevator.