1. First arrive at the Strata Rock Abyss, as shown in the picture below.

2. Then use the Rock Master's E skill to place rock creations on the mechanism, or other rock creations.

3. After activating the mechanism, the wind field will be activated on the stone next to it.

4. You can quickly reach this big stone through the wind field. After using the rock element to attack this big stone, the big stone will resonate.

5. There will be a short plot in the middle. After the plot is over, you can see that the resonance shattered the rocks at the previous location, resulting in a small hole below.

6. After entering the cave from the entrance, talk to the ruins to open the secret realm - the valley in the rock.

The above is the relevant content about how to open the valley in Yuanshen Rock. I hope it will be helpful to you.