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Genshin Impact: Hydroculus Locations Guide

Finding Hydroculi in Genshin Impact can be challenging as there are a total of 271 to collect. However, it’s a worthwhile endeavor, as collecting them all allows you to upgrade the Statues of the Seven in Fontaine. In return, you will earn rewards like Primogems, Hydro Sigils, Fontaine Shrine of Depths Keys, and more. To assist you in your search, we’ve put together detailed maps outlining the best routes for finding Hydroculi, including those in the newly added Sea of Bygone Eras from Genshin Impact version 4.6.

How to Locate Hydroculi in Genshin Impact

In Fontaine, the northwestern region of Teyvat, Hydroculi appear as small, floating orbs with a bright blue hue. While they are often found perched atop buildings and mountains, a few are submerged underwater, making them trickier to locate.

Once you spot a Hydroculus, simply touch it to collect it — it will automatically be added to your inventory. You’ll need to gather a total of twenty Hydroculi to unlock the first upgrade for the Fontaine Statue of the Seven.

Hydroculus Locations in Beryl and Belleau

In the southern areas of Fontaine, the following Hydroculus spots have been identified. Note that some are found underwater, which means you may have to swim:

1. Floating above a ship.
2. At the top of the Romaritime Harbor building, just above the water.
3. On top of a mountain.
4. Located on a grassy hill above an empty canvas.
5. On a ship, resembling a lantern from afar.
6. On a small island.
7. Dive into the water and swim through a tunnel that leads to another Hydroculus.
8. At the top of a large, pointy rock.
9. Floating in the air; use a nearby portal for easy access.
10. Inside an aquabus tunnel; board the aquabus for the easiest route.
11. High in the mountains; use an Anemo current to reach it.
12. On a massive shipwreck, near a gorge.
13. Inside a cave; dive down into a pool to retrieve it.
14. Another in the same cave, on the shipwreck.
15. Floating above a building with a pointed roof.
16. On a house by the beach.
17. Underwater near some coral.
18. Swim to a deep trench or use a nearby Teleport Waypoint to reach it.
19. Underwater, hidden inside a sealed ruin—balance the two glowing pillars to gain access.
20. Just below the waterline next to a Teleport Waypoint.
21. Deep underwater; swim down a trench for access.
22. Continue through an underwater tunnel until you reach a cave with a shipwreck; the Hydroculus is on the wreck.
23. From the previous Teleport Waypoint, swim south to find a tunnel below.
24. Observed on a boat above water.
25. Behind the ruin enemies, there’s a hidden tunnel; drop down to find it.
26. Next to a high cliff by a pointed-roof building.
27. Defeat a large ruin enemy guarding a treasure chest, then explore nearby ruins to unlock a chest for the Hydroculus.
28. In boiling lake waters—solve the boiling lake puzzle first for access.
29. Dive down a well by a house and turn left to locate the Hydroculus.
30. On a rock.
31. On top of a high cliff.
32. On a pointy ledge overlooking the mountain.
33. On the rock.
34. Near the mountain summit with a floating Hydroculus next to an airship.
35. In a doorway of an old ruin.
36. On top of the mountain.
37. Floating above a stone circle; a nearby Teleport can help reach it.
38. Underwater; glide down to destroy a breakable rock for it.
39. Underground in Merusea Village; follow the path to find it on the route to Mamere’s house.
40. In front of a house in Merusea Village; it’s deeper underwater.
41. Inside an underground cave found by following paths north until you see a shipwreck.

Hydroculus Locations in the Court of Fontaine

The northern part of Fontaine has several Hydroculus to locate, but be aware that some are locked behind the Aqueous Tidemarks World Quest:

1. Above the beach atop a fossil-like rock.
2. Underwater inside a turret; hit a glowing crab and use your skill on the turret.
3. Floating above the water accessible via a nearby portal.
4. Above water that can easily be reached from a waverider boat.
5. In the water inside a stone archway.
6. North of the Teleport Waypoint, inside a small underwater ruin.
7. Below the water next to a stone pillar guarded by stingrays.
8. On an island.
9. Inside a cave reached by swimming northwest from the island.
10. A Hydroculus high above requires solving an underwater puzzle.
11. Inside the Institute of Natural Philosophy, accessible through quest completion.
12. Near an enemy camp; check surrounding ruins.
13. In front of a large stone bridge, which holds another Hydroculus.
14. Hidden around the old aquabus line; this Hydroculus can be spotted nearby.
15. Located on the other side of the floating Hydro cubes, high up.
16. Within the same vicinity, requiring a jump across floating rocks.
17. Swim down and through a cave entrance leading to Hydroculus locations.
18. On a floating rock above the large orchard-like area.

Finding Hydroculi in the Liffey Region

In the northeastern part of Fontaine, you can find some Hydroculus locations, and it’s advised to complete the Road to the Singularity world quest for access to specific spots. Here’s the scoop:

1. Floating on grassy slopes.
2. Atop a mountain.
3. On an old pillar next to the Statue of the Seven.
4. In the water among mushroom-like plants.
5. Above water on a buoy.
6. Above grassy slopes; glide for easy access.
7. High above shallow waters.
8. Floating over the beach.
9. Enter a large cave, swimming till the end for one Hydroculus.
10. Within an underwater cave that depletes your health, so be swift!
11. Next to the Teleport Waypoint in an alcove.
12. Underneath one of the large green leaves close to the Teleport.
13. In front of an old ruin as you glide down from a Teleport.
14. Requires collecting the nearby Seelies to unlock this Hydroculus.
15. Reach this area from the airship before diving for the Hydroculus.

Hydroculus in the Morte Region

In the southeastern corner, the Hydroculus locations are as follows (be mindful of required quests):

1. Among the ruins by the Statue of the Seven.
2. In the southern ruins from a Teleport Waypoint.
3. Access via the Search in the Algae Sea world quest.
4. Above a broken stone bridge.
5. In the sky by cliffs or floating jellyfish.
6. Hidden underwater near glowing pathways or jellyfish.

Hydroculus Locations in Nostoi

Your search for Hydroculus on Petrichor Island, part of the newest region added, will also have specific spots to check:

1. On top of a townhouse.
2. By the nearby Teleport Waypoint near a broken pillar.
3. In the high mountain peak.
4. In the Faded Castle during The Shadow Over Petrichor quest.

Exploring the Sea of Bygone Eras

Finally, last part of your adventure will bring you to the newly introduced Sea of Bygone Eras; questing will be essential here too:

1. Below the teleport waypoint—under a rock.
2. East of the waypoint; check the underwater cave entrance for Hydroculi inside.
3. On top of large stone pillars, floating mushrooms, or within cave walls.

This concludes the comprehensive guide to Hydroculus locations in Genshin Impact. Happy hunting!

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