Sumeru's landscape features both deserts and forests. In the Teyvat Chapter Storyline Preview, Dainsleif likens it to a desert, and Liben mentions that "Sumeru is all rainforest and desert".
500 years ago, during the cataclysm, the previous Dendro Archon was slain and the current God of Wisdom took their place.[8] Under the aegis of the God of Wisdom, the sages of Sumeru drive themselves into hysterics and abandon all that is worldly in their pursuit of esoteric wisdom.[5]
Lisa went to study magic at the Sumeru Akademiya, where she was considered the best student they had seen in 200 years. Despite the prestige she enjoyed there, she ultimately returned to Mondstadt after growing disillusioned with the "raving-mad scholars" and the cost of "uninhibited erudition" she witnessed in Sumeru.
The Eremite are a faction of mercenaries from Sumeru who travel throughout Teyvat.They see themselves as people who are not "afraid of dying so that they might truly live.Nazafarin, a scholar from Sumeru, claims that some of its members wield "bizarre yet formidable powers," and finds the subject of the Eremite unpleasant enough to swiftly drop the subject after briefly explaining them to the Traveler.
Sumeru's Statue of the Seven depicts a female figure who appears to be a child. She is shown to be wearing a similar cloak and draping clothing similar to the other known Archon statues. Her small frame is also shown sitting on a huge leaf, an attribute owing to her mantle as the Dendro Archon.
0:00 Intro
0:33 Proceed onward and go through the tree hollow
1:02 Try to get to the special cave
2:13 Investigate the quaint room
2:45 Keep looking for a path to the upper level of the tree hollow
6:34 Investigate the courtyard far down the corridor
6:53 Investigate the corridor on the other side
7:20 Go to the upper platform
8:22 Defeat the Abyss Herald