Fontaine 4.2 | ALL New Genshin Impact Hydroculus Locations

A huge part of the Fontaine map has been unlocked with 66 new Hydroculus. Check out all new Genshin Impact Hydroculus locations in the Erinnyes Forest and Morte Region in Fontaine 4.2 here.

I. Erinnyes Forest Hydroculus Locations
II. Morte Region Hydroculus Locations

I. Erinnyes Forest Hydroculus Locations

There are 36 Hydroculi around the area of Erinnyes Forest, distributed on the surface, underwater, and underground.

#1. Aboveground

A large part of Erinnyes Forest area is land, so most of the Hydroculus in this area spawn above the land surface. You can find 28 Hydro collectibles on the ground surface. Here's the farming route in this area, starting from number 151, following the Hydroculus location No.150 in Fontaine 4.1.

Number	Description	Image
151	Above the Jelly near the Teleport Waypoint in the east of Opera House;
152	A little north of the previous one, in the Pneumousia Storage Box;
153	Continue to head north and activate The Miraculous Antoine Roger Aircraft;
154	Above the jelly at the southern river mouth of the Foggy Forest Path;
155	From the previous collectible, head north toward the waypoint, it is under the small bridge;
156	Head a little east from the previous oculus, it's above floating jellies;
157	It's above the water surface in the dock at the river mouth of the Foggy Forest Path;
160	Climb the mountain peak to collect this oculus;
161	Glide north a little to see the mark and use three keys to open the door to collect the hidden item;
162	Continue to head north to find an energy ball; Move the ball through the water ring to grab the oculus;
163	The next Oculus is on the mountain summit in the north of the previous one;
164	Above the jelly under the teleport waypoint and the Shrine of Depth;
165	Complete the time-limited challenge on the summit in the south of the Weeping Willow of the Lake to grab the hidden Oculus;
167	Above the single rock at the junction in the south of the Weeping Willow of the Lake;
170	Above the summit of the mountain in the south of the Loch Urania;
171	Under the root of the tree in the center of the Weeping Willow of the Lake;
174	On the top of the mountain in the east of the huge lake;
175	Inside the tent;
177	Glide up the wind current and wind rings;
178	Follow the Seelie and let it fill the pond with water to reveal the Hydroculus;
179	In the center of Loch Urania;
180	Above the jelly at the entrance of the Loch;
181	Next to the time challenge on the mountain summit;
182	Open the huge shell;
183	Use Jelly to jump up and pick Oculus;
184	Climb the mountain peak and glide down to grab the collectible;
185	Between two mountains;
186	On the mountain peak in the north of the Harbor.

#2. Underground

On the farming route in the Erinnyes Forest, you will spot some marks of Hydroculus on the minimap but cannot see it in the open world. Those collectibles spawn underground and underwater. Here are those hidden collectibles.

158	Inside a cave behind a breakable wall;
159	In a hole full of water near the previous Oculus;
166	Inside a pearl shell on the bottom of the small pond in the south of Weeping Willow of the Lake;
168 & 169	Collect them inside the underwater tunnel when doing the world quest 'The Wild Fairy of Erinnyes';
172	Break the wall with the cannon to enter the cave in the east of Weeping Willow of the Lake and grab one Oculus;
173	Explore deeper and climb a ladder in the bunker;
176	During the world quest 'The Wild Fairy of Erinnyes';

II. Morte Region Hydroculus Locations

There are 30 Hydroculi scattered around the Morte Region (from number 187 to 216). Half of them spawn abovewater and the rest spawn underwater.

16 Hydroculi can be found underwater (blue lines);
14 Hydroculi spawn on the ground (yellow lines).

Hydroculus Map — Hydroculus locations in the Morte Region

You should farm all Hydroculi aboveground before exploring the underground map for the rest of these collectibles.

#1. Aboveground

Let's start from the east of the West Slope of Mont Automnequi.

Number	Description	Image
188	Teleport to the east of the West Slope of Mont Automnequi and pick it above water;
189	Head north and climb the highest summit of the mountain to grab one Oculus;
192	On the top of the tower;
197	On the mountain peak on an island in the south;
198	Head south to a patch of yellow flowers and a jelly, use the jelly to jump high and pick the Oculus;
200	Near the waypoint in the southwest of Fort Charybdis Ruins, on a broken wall;
204	At the top of the wind current in the northeast of Fort Charybdis Ruins;
201	In the north of the previous one, above the water;
202	In the center of the largest island, above a jelly and a wind current;
206	Under the cane in Lumidouce Harbor;
207	Go deeper into the Lumidouce Harbor, activate the device to summon the jelly;
208	On the broken bridge in the east of Poisson;
209	Head northeast to the location of a jelly;
212	Inside a small room under the Statue of Seven.

#2. Underwater

There are 16 underwater collectibles in Mont Automnequi.

Number	Description	Image
187	Solve the puzzle to open the seal;
190	Under the underwater bridge near the sea in the east of Slopes of Mont Automnequi;
191	In the east of the previous Oculus;
193	Inside the underwater room in the east of the southern underwater teleport waypoint;
194	On the eastern edge of the ruin tower;
195	In the south of the previous Oculus;
196	Swim to the northeast of the previous collectible;
199	Use the waypoint in the south of Fort Charybdis Ruins to get close to the mark of the Oculus, then head east toward the cave by the sea to grab it;
203	Find the energy flow mechanism inside an underwater room to find the Oculus;
205	Inside the broken ship in the northeast of Fort Charybdis Ruins;
210	From the Statue of Seven, swim to the west enter the ruin, and find the energy flow mechanism;
211	From the waypoint in the south of the previous Oculus, swim to the east and find it inside a room;
213	Behind the Hydro barrier in the main room with a Looking Glass at the northern end of the ruin.
214	Behind the energy flow mechanism in the north of the previous collectible;
215	From the waypoint in the Fort Charybdis Ruins, swim north and find a breakable stone;
216	At the top of the gear in the main room of the underground ruin in the center of the largest island.