How to open Feng Dan's treasure chest wrapped in water?

According to Baidu's experience, the opening method of the original water-wrapped treasure chest is as follows:

1. First open the underwater wrapped treasure chest in the water tide mark.

2. Then, look up and open the second treasure chest.

You can get the ancient key by opening both treasure boxes.

Genshin Impact is an open world adventure game produced and distributed by Shanghai Mihayou Network Technology Co., Ltd., which started production on August 20 17 and officially opened for public beta on September 28, 2020.