How to get the exquisite box of Fontaine Blue Barrier?

According to the query of Baidu game, the exquisite box of Fontaine Blue Barrier is an item in the game Genshin Impact, and its acquisition method is as follows:

1. After collecting water and ice elements, use ice elements to freeze monsters to reach the top of the barrier.

2. The exquisite box is in the blue barrier, so you need to turn on the sluice switch, and the box is in the red area, so you need to turn on the ice sluice switch.

These two institutions are guarded by two cultural relics guards respectively. After defeating them, they will start the mechanism and open the ice gate and water gate.

Finally, you can find the exquisite box through the Feng Dan water barrier formed by the intersection of ice and water.