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With the new world section “Fontaine” and the associated underwater world, new types of chests and puzzles have also been added. These include the rare chests that are trapped in a web of algae. These chests are surrounded by algae and must first be freed before they can be opened. There are two different types of chests that are trapped in plants. Both can be opened in the same way. The second chest is just a little more difficult to free.
These algae chests are very easy to unlock, all you need is the normal attack in Fontaine’s underwater world. To get this, you have to look for one of the rays that has a blue symbol floating above it. You can pick this up with the right mouse button and then you have the ability, i.e. an underwater attack, that you need in Fontaine.
Where can you find the rare algae chest?
The Rare (Exquisite) Chest can be found in the Salacia Plain, exactly at the location shown in the picture:
Genshin Impact: Fontaine Algae Chest Open
To be able to destroy the small yellowish balls, you first have to get the ability from one of these rays. The rays can usually be found in the vicinity of the crates. Right-click to remove the ability from the ray.
Then attack the yellowish spheres next to the chest blocked by plants (E button).
Once both spheres have been destroyed, the algae disappears and you can open the chest/box.
This is how easy it is to open the algae chest in Genshin Impact.
