Scarlet Reign's Great Red Sand is a Sumeru Hidden Achievement in Genshin Impact 3.1. Guide includes how to unlock, map & location, Sumeru Desert hidden secret, achievement, & more!
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Of Ballads And Brews | Sumeru Desert |
How To Get Scarlet Reign's Great Red Sand
Complete Golden Slumber Series

In order to unlock this hidden achievement, you need to finish the Golden Slumber Series first.
Golden Slumber Series Quest GuideActivate 3 Large Obelisks In Sumeru Desert

There are 3 large obelisks that are hidden in the desert area of Sumeru. Activate the obelisks to unlock this hidden achievement.
Hidden & Secret In SumeruMap & Location Of Scarlet Reign's Great Red Sand
Large Obelisk Location Overview
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▼1. Northwest of the Mausoleum | ▼2. East of Khemenu Temple | ▼3. East of The Dune of Elusion |
Large Obelisk Location 1
Northwest Of The Mausoleum of King Deshret
Map Overview | |
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Walkthrough | |
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3 | ![]() └ Do it when the large fan blades are off to avoid the Primal Embers getting blown away |
4 | Release the Primal Embers again and follow it |
5 | Use the upward current from the large fan blades to get on the upper ground |
6 | ![]() └ Use Anemo to blow it away |
7 | Put it to Replicator Keystone nearby |
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11 | Follow the path |
12 | ![]() └ A Precious Chest appears |
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Large Obelisk Location 2
Abdju Pit Cave
Map Overview | |
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Walkthrough | |
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3 | ![]() └ Use the crest for convenience |
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5 | Proceed and open another door |
6 | ![]() └ A Precious Chest appears |
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You can unlock this area initially from the Lost in the Sands quest, the first quest of the Golden Slumber series.
Lost In The Sands Quest GuideLarge Obelisk Location 3
Lamb-Devourer Rock Secret Base
Map Overview | |
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Walkthrough | |
1 | ![]() └ Keep following until the password has been spoken |
2 | ![]() └ Select the 1st one |
3 | Explore the cave |
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5 | ![]() └ A Precious Chest appears |
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You are going to encounter this area from the Hidden Mercenaries quest which is a part of the Old Notes and New Friends series.
Scarlet Reign's Great Red Sand Rewards
Unlock An Achievement

Unlocking the Scarlet Reign's Great Red Sand achievement gives you Primogem x5.
All Achievements List