The Lost Valley in Genshin Impact is a dungeon added in update 2.6. The area is located in the Rift in the land of Geo, where you can find two sets of artifacts from the Cinnabar Afterlife and Echoes of the Offering sets, which Xiao and Ayato can use.
The Lost Valley is a dungeon in the Rift area of Geo. You can adventure in this place to find two sets of artifacts from the Cinnabar Afterlife, which can be traded for powerful rewards from the Cinnabar Shaman. This article will show you how to properly open the dungeon and collect all the rewards in the Lost Valley in Genshin Impact.
How to open a new dungeon in Genshin Impact?
To solve this riddle, you will need a character in the squad who knows how to put geo constructions—for example, Lumin, Ning Guang, Zhong Li, or Iter. To switch the element of the main character to Geo, you must select it and go to one of the statues of the Archon in Li Yue.

First, you have to find where the Unique Rock is located. It is located south of the dungeon and marked with the Geo symbol. Next, you will meet Hilichurls, and after defeating them, you will take a chest with rewards.
At the entrance to the Fuao Valley, on a blocked rock, you will see a stone tablet with the inscription:
In front of this sign, where the chest was, you need to place a geo-construction. This will activate the plate, and you can fly past the Wind Rings or run towards the resonance source. After reaching the top of the cliff, use a flying attack to strike – this will trigger geo-resonance. Or, going down below, use an attack with a two-handed sword.
The main thing is to act quickly so that the original geo-construction created by your character is in the same place when you activate the wave from a large stone surrounded by yellow fog. This will trigger the destruction of the Unique Rock.
Go back to the place where the construction was installed. If you completed all the indicated actions on time and correctly, Paimon will report that the ground is shaking, and then a cut-scene will appear with the opening of the passage to the dungeon. Also, you will get the Lost Valley achievement.
To unlock the entrance, you need to blow up the nearby traps. Following opening the dungeon, you will fall under the influence of the air current and find yourself next to the Luxury Reward Chest.

Lost Valley Dungeon Rewards
Lost Vale stores two new Artifact Sets in the Rift:
Cinnabar afterlife with effects:
Two pieces will give +18% attack power.
Four Pieces – Increases ATK by 8% for 16 seconds after an elemental explosion. When a character loses health, the attack power increases by 10%. The effect stacks up to four times per cast, but no more than once every 0.8 seconds.
Offering Echoes with Effects:
Two pieces grant +18% attack power.
Four pieces on regular attacks grant a 36% chance to activate an effect – Adding a Critical Strike: 70% Attack Power to Damage. The effect is very short-lived and ends after 0.05 seconds. If the skill fails to activate, the chances increase by 20% for the next hit. The frequency of occurrence is one time per 0.3 seconds.
The End Boss
If you’re looking for a challenge in Genshin Impact, look no further than the Lost Valley. This hidden area is home to a powerful boss that can only be accessed by completing a series of challenging puzzles. But if you’re up for the challenge, the rewards are well worth it. Here’s everything you need to know about the Lost Valley and its final boss.
To access the Lost Valley, you’ll need to obtain the Sealed Room Key from Mondstadt. This key can be obtained by completing the quest “In Search of the Secret Room” given by Katheryne at the Adventurers’ Guild. Once you have the key, head to Stormterror’s Lair and enter the cave’s sealed room.
Inside the Lost Valley, you’ll find yourself in a maze-like area full of deadly traps and enemies. You’ll need to use your platforming skills to navigate the valley, avoid pitfalls and fight enemies. A powerful enemy known as The End Boss awaits at the end of the valley.
The End Boss is a massive, multi-headed creature that will take everything you’ve got to take down. But if you’re able to defeat