How to open the deep palace?

The opening method of the deep palace is as follows:

Tools: Redmi K40, MIUI 12.5.9, Shen Yuan 3.5.0.

1. We came to Mengyun Shrine in Haiqi Island and found Lu Zi for a dialogue.

2. Take part in the world mission "Moon Bath" and complete it according to the instructions.

3. After completing the task of "Bathing in the Moon", the next day, I went to the transfer point of Coral Palace in Haiqi Island and found the dewdrop dialogue again.

4. Take the task "Stop the water pot" and complete the task according to the instructions.

5. After completing the above two tasks "Moonlight Bath" and "Water Stop Plate", jump into the pool below the Coral Palace to unlock the map "Xia Yuan Palace".