The Mystery of Tecoloapan Beach is a World Quest in Genshin Impact 5.2. Check out this guide for its quest unlock requirements, walkthrough, and all rewards!

How to Unlock The Mystery of Tecoloapan Beach

Complete The Prerequisites

Quest Unlock Requirements
	Aha! Looks like The Mystery of Tecoloapan Beach is not locked behind any quest!

The Mystery of Tecoloapan Beach is a new world quest added in Version 5.2 and is available immediately after unlocking the Natlan region.

The Mystery of Tecoloapan Beach Walkthrough

Head to The Foggy Island

After unlocking the Masters of The Night Wind sub-region, head to the Northwest-most point of the island, which is near a waypoint.

You can visibly see a foggy location, both on the map and in-game, especially if you're standing on the coast. Indwell one of the nearby Koholosaurs and head towards the foggy island.

Discover The Island's Mystery

As you near the island, you'll see some form of ruins. There will also be colored subtitles that will automatically trigger, prompting the start of the quest.

How to Undo The 1st Seal

Once on the island, you'll be tasked by a Mysterious Force to investigate a marked location. Head up the structure until you come across a sigil that turns you into an Iktomisaur. Use its indwell ability and scan the glowing rune.

Undo The Island's Other Seals

	How to Undo The 2nd Seal
1	After you undo the 1st Seal, the others will be marked on the map, though the area will still be obscured by fog. Simply follow the light beacons to reach the next area.
2	Follow The Arrows Since the map won't be of much help until you've cleard the fog, you can instead follow Grafitti Arrows that convenietly point you towards the next objective. Follow the arrows upward to reach the 2nd Seal.
3	You'll find the 2nd seal on top of a tall earth spire. Use the Iktomisaur's unique Saurian abilities to scale up the cliffside and reach the summit. Line up the runes and scan to undo the seal.

Uncover The Hidden Entrance

HIDDEN	REVEALED

The Mysterious Force will hint that the next seal is underground. Follow the beacon until you reach a small islet. You'll see 2 Spirits there that look like Sauroform Tribal Warriors.

Indwell into an Iktomisaur and use its ability to scan the nearby rocks, summoning another Saurian Warrior Spirit who'll then fight the other 2. Finish the fight faster by scanning and using the Explosive Barrel Glyph on the other rock.

	How to Undo The 3rd Seal
1	Reveal The Floor Illusion Head to the center of cave and use the Iktomisaur to scan the flooring, revealing a lower level. Drop down after. NOTE: The floor illusion can bug out if you go inside ahead of the yellow quest beacon.
2	How to Solve The Torch Puzzle Scan Fire Glyphs you see to create a torch. Obtain 3 torches to solve the puzzle. Place a torch in the gated room to obtain the glyph inside. Rescan whichever glyph you used to complete the puzzle. Solving the puzzle will summon enemies that you have to defeat.
3	Scan the seal, then ride the wind current upwards to exit the cave.

Find The Final Seal

Upon exiting the cave, follow the river downstream, towards a floating island in the distance that'll be marked. As you get closer, you'll encounter an Iktomasaur who'll help you reach it.

	How to Undo The 4th Seal
1	Ride the wind current that appears until it the highest point it can go. A bunch of floating stone platforms will then materialize. Indwell the Iktomasaur on the first platform, then use it to more easily get to the floating island.
2	A wind current will appear at the edge of the floating island. Use it to stay airborne and scan the glyph on the cliff.
3	Next, glide down to a lower level on the floating island and place the missing Glyph piece to restore and scan the 4th Seal.

Return to The Central Ruins

Undoing all the seals will reactivate a portal in the center of the island. Go to it to be transported to the boss area.

Defeat The False Wayob

You must defeat the boss of this quest, 'Evildoer Who Once Led Countless Priests Astray', to solve the mystery of the island and restore its peace.

How to Defeat The False Wayob
	Cryo variant of the Wayob Manifestation. It shares the same moveset.
	Can summon normal Natlan enemies as backup.
	Use Pyro and/or Electro Characters.
	Bring a healer or shielder to mitigate its AoE attacks.
	Burst it down once you break its barrier.

Defeat the boss and listen to the Guardian Wayob to lift the fog surrounding Tecoloapan Bay.

The Mystery of Tecoloapan Beach Rewards

Total Quest Rewards

Total Quest Rewards
Primogem x50	Mora x54500	Fine Enhancement Ore x4
Adventurer's Experience x5

Genshin Impact Related Guides

All Quests and Quest Types

Other Shadows of the Mountains Quest Guides

Shadows of the Mountains Quest Line Guide

All Natlan World Quests Guide

List of World Quests