Fluorescent Fungus is one of the Local Specialties available in Genshin Impact. The glowing mushroom can only be seen on Tsurumi Island and is actually one of the few items there. This fungus is also the only mushroom species available in the area. Because of this, a mushroom enthusiast named Abe asks the Traveler to bring them this fungus.

When players first reach Tsurumi Island in Genshin Impact 2.2, it will be covered in fog. Travelers have to finish a series of quests to lift the fog off. While it's not impossible to traverse through the island with the fog intact, cleared air will make their journey to locate this rare specimen much easier.

Updated on November 30, 2023, by Nahda Nabiilah: While leveling up characters is an essential task if Travelers wish to have strong teams and the ability to beat tougher enemies, as of version 4.2, Fluorescent Fungus is only needed for one 4-Star character. Therefore, players might want to save time and effort if they don’t have Thoma on their characters list or don’t plan on using him anytime soon. If players are trying to raise the housekeeper, however, here are all the Fluorescent Fungus locations in Genshin Impact.

Fluorescent Fungus Locations In Genshin Impact

Fluorescent Fungus can be found all over Tsurumi Island. It usually grows under tree trunks and is highly noticeable as it often grows in clusters.

Areas marked with meat-like pins mean the Fluorescent Fungus is underground.

North Of Tsurumi Island

North of Tsurumi Island, Travelers can find Fluorescent Fungus in these locations:

1. Underground Ruins of Shirikoro Peak
2. Oina Beach
3. Chirai Shrine

There's one spot under Shirikoro Peak that will trigger Abe's anger if the mushrooms are harvested from here. Travelers should mark this place, as the ghost located there will eventually reward them with Primogems.

South Of Tsurumi Island

Meanwhile, in the southern part of Tsurumi, players can find a lot of Fluorescent Fungi near the Teleport Waypoint. Other than that, Travelers may also have to venture inside Mt. Kanna to find more of these mushrooms.

How To Unlock Tsurumi Island In Genshin Impact

Of course, to unlock Tsurumi Island, people have to make their way to the Electro Region of Inazuma first. To unlock Inazuma, players need to reach Adventure Rank 30 and finish the Archon Quest Chapter II: Act I – The Immovable God and Eternal Euthymia. Then, finish the Seirai Stormchasers Quest on Seirai Island. At the end of this quest, Travelers will obtain a purple feather. This item will be crucial for their quest on Tsurumi.

Next, initiate a quest series called Through the Mist. Doing so will instantly teleport players to Tsurumi Island. This World Quest requires a few real-life days to finish. After completing the quests, the fog will be lifted for good, and players can finally enjoy their time exploring the land.

What Is Fluorescent Fungus Used For?

As of Genshin Impact 4.2, only Thoma needs Fluorescent Fungus to ascend. The Kamisato Clan's Housekeeper can be a reliable shielder to protect most main DPS characters. In total, players will require 168 Fluorescent Fungus to fully upgrade Thoma. Here's the breakdown for each ascension:

• First ascension: 3 Fluorescent Fungus
• Second ascension: 10 Fluorescent Fungus
• Third ascension: 20 Fluorescent Fungus
• Fourth ascension: 30 Fluorescent Fungus
• Fifth ascension: 45 Fluorescent Fungus
• Final ascension: 60 Fluorescent Fungus