Ancient Key is a quest item in Genshin Impact. Guide includes how to get, map & location, how to use, Aqueous Tidemarks, Liliacruces Forum, Institute of Natural Philosophy, & more.Fontaine Guide
What Is Ancient Key?
Ancient Key is an important item that can be obtained at the Liliacruces Forum during the Aqueous Tidemarks quest. This is used to open the path to the Institute of Natural Philosophy.
How To Get Ancient Key?
Start Aqueous Tidemarks Quest
Talk To Virgil At The Court Of Fontaine
You cannot get the Ancient Key without progressing with the Aqueous Tidemarks quest.Aqueous Tidemarks Quest Guide
How To Use Ancient Key?
Open Underwater Gate
Interact with the mechanism to use the Ancient Key and open the gate to proceed with the Aqueous Tidemarks quest.