According to Yi Yiyu's estimation, the whole immeasurable cave is only hundreds of miles in size. It's an independent small cave. A piece of land below spreads far away. There are all kinds of trees, flowers and plants growing on the ground. There are still some mountains, which are not steep. You can also see some monsters and monsters, but the strength is not strong. After all, it's a trial place for children who are new to the natural environment, which is impossible There's too much of a presence.

and the sky is covered with thick clouds, but they send out light, which makes the whole cave bright as day....