After collecting all the pets, go down the rapids. You should be familiar with this. Suggest looking for a map. Reach a square place where you can dive, only dive on the underwater stone platform, and then float up. Go ahead and you will see a stone tablet. If you dig a hole, it will open. Remember to bring six pets, the roaring whale is at the front, the ancient empty fish is at the back, go forward after entering the room, ask in the center of the last stone tablet, and it will all be activated.

The next step is to go to the position of the pillar.

Rock pillar: Ask the stone tablet. I want to take two steps to the left, then two steps down, and cut with a knife.

Iceberg: ask the stone tablet to circle the wall (the direction should be counterclockwise, and if it is wrong, go out and come in, try clockwise).

Steel column: central flash