How to unlock Firethief's Secret Isle in Genshin Impact

The Firethief's Secret Isle in Genshin Impact is at the bottom right corner of Natlan's Map, toward the east of the People of the Springs and south of Scions of Canopy. It will only show up as a Teleport Waypoint over the water, and you will need to solve a set number of puzzles to unlock it. This isle is also where you can find one of the Iridescent Inscription Fragment quest items.

We go over how you can unlock the Firethief's Secret Isle in Genshin Impact to make it show up on your map.

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A step-by-step guide to unlock the Firethief's Secret Isle in Genshin Impact

Travelling to the island

Location (Image via HoYoverse)

Take the teleport waypoint near the beach south of the Ancestral Temple. From here, make your way to the Crescent Shaped island. You will find a Spiritscone that will let you transform into the Saurian Yumkasaur. Use its ability to rapidly go to the island in front of you.

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The first trial

The first trial (Image via HoYoverse)

Activate the waypoint and you will spot a giant glowing orb next to it. Simply go under it and you can disable it. But be careful as it will shoot projectiles. After you disable it, a challenge will spawn. Take on the form of the Yumkasaur using the nearby Spiritscone and start the challenge.

Zip across the island while disabling more of the giant glowing orbs. Disable the last one to spawn the first inscription. Touch it to get an exquisite chest.

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The second trial

Second trial location (Image via HoYoverse)

The second challenge is near the beach. Turn around from the cliff with the glowing inscriptions and you will be able to spot the trial next to a Koholasaur Spirtiscone near the water. Transform into the Saurian and start the challenge.

Like the last challenge, you disable a few glowing orbs. In case your Saurian form perishes from the incoming projectiles, worry not as the Spiritscone will spawn next to the Challenge once more.

After disabling the first look to your left and disable the rest. You will get one exquisite chest after touching the inscription like last time.

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The third trial

Head through this opening (Image via HoYoverse)

Look straight and you will be able to spot an opening between the cliffs. Go through it and go left. Follow the beach till you come across the third challenge. Take the form of the Teptelisaur and complete the trial.

It is quite simple, as after disabling the first orb, a glowing hole will spawn that the Teptelisaur can use to take you to the top of the cliff. Interact with the inscription, and you will get another chest. Now, it's time to face the final challenge and unlock the Firethief's Secret Isle in Genshin Impact.

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The fourth trial

The final challenge to unlock the Firethief's Secret Isle in Genshin Impact (Image via HoYoverse)

Go to the cliff with the glowing symbols in the middle of the island. A challenge will spawn, and interacting with it will make you face off against Wayob Manifestations. Defeat them to obtain the third inscription, alongside a Luxurious chest. The Firethief's Secret Isle in Genshin Impact will also appear on the map.