Genshin Impact: Nostoi Region Hydroculus Locations

While exploring the lands of the Nostoi Region, players can locate Hydroculus in Genshin Impact, which is Fontaine’s form of Oculi. The Lost Oculi is a type of in-game currency that Travelers can use to level up their Statue of the Seven in exchange for significant prizes.

Players can exchange the collected Hydroculus at any Fontaine Statue of The Seven in exchange for a bunch of valuable rewards, like Travelers’ Constellations, Primogems, Hydro Sigils, Mora, EXP, and Fontaine Shrine of Depths’ Keys in Genshin Impact.

Nostoi Region Hydroculus Locations In Genshin Impact

There are nine Hydroculus in the Nostoi Region, which are scattered around the grounds of Petrichor and Faded Castle in Genshin Impact.

Nostoi Region Hydroculus Location #1

The first Nostoi Region Hydroculus is located on the central mountain summit. To reach it, start the challenge northwest of the mountain and take the spawned Hydro Portal.

Nostoi Region Hydroculus Location #2

Reach the next Hydroculus location in Genshin Impact by gliding south from the mountaintop. The lost Oculi will be floating on top of a stone pillar.

Nostoi Region Hydroculus Location #3

The third Hydroculus is on top of the house, northwest of the town’s bell tower. Use a Genshin Impact Anemo character to easily reach its location.

Nostoi Region Hydroculus Location #4

Teleport to Faded Castle western Lower Level Waypoint and head northeast. The fourth Hydroculus will be trapped behind a Mysterious Bookcase puzzle in Genshin Impact. Solve it, then long press The Might of the Ancient Symphony to clear the passage and collect the Hydroculus floating behind it.

Nostoi Region Hydroculus Location #5

To obtain the next Hydroculus:

• Teleport to the Faded Castle: Middle Level southern Waypoint.
• Take the southern passage.
• Climb the Faded Castle’s library stairs.

• Hit the Crystal Mechanism.
• Use the blue platforms to reach the highest part.

• Hit the second Crystal Mechanism.
• Enter the Hydro Portal.
• Collect the roaming Grimoire by pressing/tapping The Might of the Ancient Symphony.
• Submit the Lost Grimoire to the Mysterious Bookcase.
• Long press The Symphony skill to clear the way.
• Collect the Hydroculus floating behind the Bookcase.

Nostoi Region Hydroculus Location #6

Fast travel to Faded Castle: Middle Level southern Waypoint and glide toward the Sea Of Bygone Eras portal. Next to it, players will find a Hydroculus floating on top of metal pipes.

Nostoi Region Hydroculus Location #7

From the previous location, head west and dive into the water. In the water, Travelers will find the seventh Hydroculus floating near a big glass window.

Nostoi Region Hydroculus Location #8

Teleport to Faded Castle: Exhibition Hall Waypoint and climb the western fallen pillar. Next, glide toward the broken wall to collect the Hydroculus floating behind it.

Nostoi Region Hydroculus Location #9

To collect the ninth and final Hydroculus in the Nostoi Region, Travelers must first pass the Statue of Marble and Brassboss in Genshin Impact, then head to the end of the boss’s room to collect it.