Fontaine Underwater Map Guide

Genshin Impact's underwater area is located in large parts of Fontaine and has been expanded in Version 4.6! Learn more about underwater exploration in Fontaine, a map of its underwater areas, features, puzzles, and enemies here!

Fontaine Underwater Map

Version 4.2 Underwater Map

4.2 Fontaine Underwater Map
See full image in new tab	See full image in new tab

While Sumeru's Desert Ruins are buried beneath earth and sands, Fontaine's ruins can be found in deep, sprawling underwater landscapes! Players can explore these landscapes using the Diving Mechanic introduced in Version 4.0.

New underwater areas were added in Version 4.2.

Diving Mechanic in Fontaine

Can Only Be Explored With Fontaine's Blessing

You must have Fontaine's Blessing, the Transoceanic Sourcewater, before you can dive in the Fontaine's underwater areas. Make your way to any of the nation's Statue of the Seven, activate it, and enjoy the underwater exploration!

The nearest Statue of the Seven you can activate in Fontaine is at Romaritime Harbor, northeast of Hills of Barsom. Summon your Waverider at Sumeru's shore and ride it across to reach the harbor.

Transoceanic Sourcewater Guide

Version 4.6: Sea of Bygone Eras Map

4.6 Sea of Bygone Eras Map
See full image in new tab	See full image in new tab

The Sea of Bygone Eras as well as the Nostoi Region were released in Version 4.6 on April 24, 2024. It invovles the humble village of Petrichore and the remains of the Lost Kingdom of Remuria.

Version 4.6 Patch Notes and Details

Reach Part 3 of the Canticles of Harmony Quest Line

The Sea of Bygone Eras area can be unlocked by doing the Canticles of Harmony World Quest. In its 3rd part, The Last Day of Remuria, the quest will have you explore the area as one of its objectives.

Canticles of Harmony Quest Guide

Fontaine Underwater Map Features

Underwater Currents

Underwater currents work similar to Anemo Rings and push characters forward at high speeds, depending on where your character is facing!

While riding Fontaine's underwater currents, however, you can only move around to some extent, and won't be able to get off the flow until you reach the end.

Fontaine's Currents Guide

High-Pressure Water Vents

High-Pressure Water Vents continuously spray out underwater currents, able to sweep your character along its path!

Gain the abilities of a Xenochromatic Armored Crab using the Transoceanic Sourcewater to gain a shield that can resist these underwater currents!

High-Pressure Water Vent

Recovery Orbs

Players can touch small schools of yellow fishes circling around Recovery Orbs to regain HP and Aquatic Stamina.

Aquatic Stamina (blue) is different from regular stamina (yellow) as they are only consumed when swimming fast underwater and you will not drown when it's depleted!

Additionally, this is the only way to recover HP underwater (other than Food from your inventory) as your characters won't be able to use their skills while diving.

Fontaine's Recovery Orb

Allogravity-Condensed Water Bodies

There are also some areas in Fontaine that can be found aboveground, but floating suspended in various cubes of water. Players can still enter and explore these areas using the same Diving Mechanic!

What are Allogravity-Condensed Water Bodies?

Might of the Ancient Symphony

After acquiring the Autoharmonic Music Box, Monsieur Os will bestow upon you the Might of the Ancient Symphony, which will allow you to play Pause Soundwaves and Play Soundwaves.

Pause Soundwaves will hold surrounding objects in place, while Play Soundwaves will reanimate them. Play the corresponding soundwaves to solve puzzles, acquire chests, and progress the quest!

Might of the Ancient Symphony Guide

Scylla the Whale

The former prince of Remuria has taken a cetacean form and functions as a warp point when exploring the Sea of Bygone Eras. He will disappear and reappear near wherever you venture into.

You can warp instantly to his side and ask him to summon currents to carry you to your desired destination.

How to Summon Currents with Scylla

Lost Grimoires and Bookshelf Puzzles

Lost Grimoires are floating phantom books that can be obtained by stopping them midair with Pause Soundwaves. Once in possession of a Lost Grimoire, keep an eye out for glowing blue bookshelves and submit a Grimoire.

Afterwards, reanimate the bookshelf with Play Soundwaves to move it out of the way and see what they might be hiding!

Lost Grimoires Locations and Puzzle Guide

Washer Octupus and Allochromatic Anemones

Another new feature in the Sea of Bygone Eras are Washer Octupuses and Allochromatic Anemones. Washer Octopuses can interact with Allochromatic Anemones to reveal chests.

However, they may need some assistance first before they can help you in solving puzzles.

Allochromatic Anemones Puzzle Guide

Auric Anglerfish

Auric Anglerfishes are ancient mechanical anglerfishes that swim about in the Sea of Bygone Eras. Due to their size, they most likely hold a chest inside of their mouths.

To acquire the chest, simply sneak up on the anglerfish's tail and use a Pause Soundwave to stop it in its tracks. Avoid the anglerfish's light as it will shut its mouth and put a barrier on its tail.

Auric Anglerfish Locations

Fontaine Underwater Map Puzzles

Fontaine Echoing Conches

The echoing conches in Fontaine release soundwaves underwater, letting you detect invisible objects or activate other devices.

How to Solve Fontaine Echoing Conches

Fantastical Floating Ball

Fantastic Floating Balls are sphere-shaped devices that can be moved using high-pressure currents! You can activate ringed devices by fitting the Fantastic Floating Balls through them.

How to Solve Fantastical Floating Balls

Underwater Thorny Cyst

In an underwater cave found south of Mont Esus East, you can find a Thorny Cyst that renders the water around it poisonous. Destroying this Thorny Cyst can result in a Luxurious Chest and a Mysterious Ore!

How to Destroy the Thorny Cyst

Fontaine Underwater Map Bosses and Enemies

Hydro Tulpa

Hydro Tulpa is a gigantic humanoid monster formed out of many water droplets. It can summon small Tulpas that it absorbs to become even more powerful.

Hydro Tulpa Location and Boss Guide

Located in Beryl Region, Northwest of Elynas

Hydro Tulpa is located inside a cave in Beryl Region, northwest of the Elynas mountain ridge. DIve down the waters to enter its cave.

Millennial Pearl Seahorse

The Millennial Pearl Seahorse is a Fontemer Aberrant that rose to the same status and power as the Emperor of Fire and Iron! This elegant seahorse claimed the northern waters of Fontaine as its territory.

Millennial Pearl Seahorse Boss Guide

Located in the Liffey Region's Underwater Cave

The Millennial Pearl Seahorse is located deep in a cave, with the entrance found north of the Liffey Region's underwater area.

Liffey Region Map Guide

Emperor of Fire and Iron

The Emperor of Fire and Iron is a new Field Boss found in Fontaine's Belleau Region, ruling over other Fontemer Aberrants. This fiery armored crab attacks by lobbing volcanic bombs and causing lava to erupt from the ground!

Emperor of Fire and Iron Boss Guide

Located in the Belleau Region's Underwater Cave

The Emperor of Fire and Iron is located in a lair that can only be reached through an underwater tunnel south of Elton Trench.

Legatus Golem

The Legatus Golem, or the Statue of Marble and Brass, is a world boss added in Version 4.6. It specializes in heavy, quickly executed attacks that can deal severe damage if you're not careful.

It possesses a Geo Shield and breaking it will render the Legatus Golem vulnerable to attacks.

Legatus Golem Boss Guide

Located in Nostoi Region's Faded Castle

The Legatus Golem is located in an underground room in the Faded Castle of the Noistoi Region. To unlock the Faded Castle, Travelers must first engage the Canticles of Harmony World Quest.

Nostoi Region Map Guide

Fontaine's Local Legends

Fontaine also features its Local Legends as mini-bosses! Most of these tougher versions of Fontaine enemies are fought underwater, which makes the abilities gained with Transoceanic Sourcewater your only weapon to defeat them.

Fontaine's Underwater Local Legends
Iron Viscount	Fairy Knight Twins	Ocean Circuit Judge
Fading Veteran	Swords of the Gorge	Dobharcu, Lord of the Hidden
Luachra the Brilliant	Mageblade Corrouge	Chassanion

Local Legends of Fontaine and Locations

Fontemer Aberrants

Fontemer Aberrants are creatures found both aboveground and underwater in Fontaine. These creatures have evolved to have various offensive and defensive abilities.

You can also get some of their abilities by using the Fontaine's Blessing to get Xenochromatic Abilities!

Fontemer Aberrants Enemy Guide

Fontaine Underwater Items

Local Specialties

Underwater Local Specialties
Beryl Conch	Lumitoile
Romaritime Flower	Spring of the First Dewdrop

As of Version 4.2, four of Fontaine's Local Specialties are found underwater! These are used as Ascension Materials for Fontaine characters.

Fontaine Local Specialties

Cooking Ingredients

Underwater Cooking Ingredients
Tidalga

One of the items you can find underwater is the Tidalga, which you can use as a cooking ingredient.

List of Cooking Ingredients

Genshin Impact Related Guides

Fontaine Map Guide

Fontaine Area Map Guides

Related Fontaine Map Guides
Liffey Region	Fontaine Research Institute
Fortress of Meropide	Merusea Village
Narzissenkreuz Ordo	Erinnyes
Morte Region	Tower of Gestalt
Nostoi Region	Sea of Bygone Eras

Fontaine Exploration Guides

Fontaine Exploration Guides
Diving Mechanic Guide	Underwater Area Guide
Fontaine Commission	Fontaine Reputation
Fontaine Craftable Weapons	Pneuma and Ousia
Local Legends	Xenochromatic Creatures
Ancient Symphony

Significant Fontaine Location Guides

Fontaine Location Guides
Hydroculus	Fountain of Lucine	Shrine of Depths	Enigmatic Page
Teleport Waypoints	Treasure Chests	Remarkable Chests	Secret Treasure Map

Fontaine Item Guides

Fontaine Local Specialties
Rainbow Rose	Lumidouce Bell	Romaritime Flower	Beryl Conch
Subdetection Unit	Lumitoile	Lakelight Lily	Spring of the First Dewdrop
Other Items Found in Fontaine
Tidalga	Marcotte	Pluie Lotus	Bulle Fruit
Condessence Crystal	Ancient Key	Drained Conch Cup	Mysterious Core
Hydro Sigil	Strange Part	Key to Some Place	Credit Coupons
Energy Concentrating Component	Mysterious Ore	Arkhium Ore	Arkhium Lumenite
Spur Gears	Welfare Meal	Handwheel	Punched Tapes
Foggy Forest Branch	Simple Vault Key	Autumn's Map	Rocky's Map
Liam's Map	Rouge's Map	Barrow Map	Parker's Hopes Map
Athos Map	Freeman Map	Ridiculously Common Branch	Restored Score

Fontaine Domain Guides

Fontaine Domains Guides
Denoument of Sin	Echoes of the Deep Tides
Pale Forgotten Glory	Waterfall Wen
Faded Theater

All Fontaine Domains and Locations

Fontaine Quest Guides

Ancient Colors Quest Chain
A Brush of Seafoam and Crimson	A Gradient of Dreams and Ochre
Blue Longing of Heart and Moon
Ann of the Narzissenkreuz Quest Chain
The Narzissenkreuz Adventure	Kingdom Through the Looking-Glass
“If She No Longer Dreams of You...”
Unfinished Comedy Quest Chain
Game of the Rich	An Eye for An Eye
Hereafter...	Scenes From Life in Meropide
In the Wake of Narcissus Quest Chain
Search in the Algae Sea	Muse's Mother
Meteoric Lance	Cupid's Lover
Thalia and Melpomene	Savior's Wake
Waking From the Great Dream	Rowboat's Wake
The Wild Fairy of Erinnyes Quest Chain
Foggy Forest Path	Wilting Weeping Willow
Furious Mouth of the Spring	Within the Depths of Erinnyes
Questioning Melusine and Answering Machine Chain
Vagrants and Scamps	The Red and the Black
Questions and Answers
Canticles of Harmony Quest Chain
The Shadow Over Petrichor	Underwater Nocturne
The Last Day of Remuria	Gradus ad Capitolium
Fortune Plango Vulnera	For Yesterday and Tomorrow
Erinnyes Region World Quests
Impromptu Poem of the Crimson Dawn	Free Verse
Morte Region World Quests
Wish-Fulfilling Treasure Hunt
Liffey Region World Quests
In Search of Lost Time	Both Brains and Brawn
Fontaine Research Institute Region
Fontaine Research Institute Chronicles	Road to the Singularity
A Letter	Treacherous Light of the Depths
Villains	An Expected Plan
An Expected Lie
Belleau Region World Quests
Still Mouthwatering!	Truly Mouthwatering!
Beryl Region World Quests
Book of Esoteric Revelations	Echoes of the Ancient World
Fishing Game	Good Stuff, but Terrible Taste
The Lone Phantom Sail	The Three Primary Colors of the Solar Corona
Were It So Easy	Strange Stone Chronicle
This Isn’t Pumpkin Soup…	Pursuit
Through the Looking Glass
Court of Fontaine Region World Quests
Another Horizon of Adventure	A Certain Notice
A Certain Trifle	A Certain Stamp
A Fontanian Message	Ann's Story: Prologue
Aqueous Tidemarks	Danger Lurks Everywhere in Fontaine
In Expert Company Part 1	In Expert Company Part 2
Self-Automatic Foraging	Seymour's Story: Prologue
Steambird Interview	The Final Question
The Fountain Flows Again	Unfinished Story
Upon a Flowery Field of Grass	Initial Facts
Happy Birthday	Where His Life Lies
Daydreams Beyond Space and Time

Fontaine World Quests

4.6 Fontaine Puzzles and Features

4.6 Fontaine Features
Washer Octopus	Lost Grimoires and Mysterious Bookshelves
Wonderchime Flowers and Allochromatic Anemones	Summon Currents with Scylla
Music Score Locations	Auric Anglerfish
Break the Chains that Bind Scylla	Portus Anticus Luxurious Chest
The Flying Outlander Achievement Guide	Juliano's Hidden Chests
How to Pet Osse	How to Take the Blank Score
How to Return the Flying Bird Phantasms	How to Rebuild the Golden Aqueducts

4.2 Fontaine Puzzles and Features

4.2 Fontaine Features
Humongous Hat Jellyfish	Potential Energy Orbs
Operable Mechanisms	Reveal the Altar's Secrets
Pahsiv Shop	Decode This Level's Puzzle
Mary-Ann Brainstorming Answers	Salvage the Lost Items
Looking Glass Locations	Permingeat's Questions and Answers
Contaminated Bacterial Mats	How to Solve Dew Bubbles and Branches
How to Operate Dangerous Autocannons	Harmonious Reed Pipes
Floating Crystal Flowers and Platforms

4.1 Fontaine Puzzles and Features

4.1 Fontaine Features
Searchlight's Detection Range	Gear Drain Valves
Recover the Condensing Components	Central Laboratory Ruins Seelie Puzzle
How to Destroy the Thorny Cyst	How to Go to the Abandoned Production Zone
How to Solve the Forging Press Puzzle	How to Unlock Bravais' Secret Study
Strange Eels	Allogravity-Condensed Water Bodies
Red Meanies	Stabilizer
Drive Valve to Supply Warehouse 1	Flying Energy Thief
Experimental Focusing Mirror Puzzle	Cipher Letters
Energy Transfer Terminals	Fixed Storage and Energy Transfer Device
How to Retrieve All 4 Replica Anchors	How to Start the Optical Device
Retrieve the Anchor at the Institute Dormitories	Retrieve the Anchor at the Institute of Clockwork Applications
Remains of the Day Secret Achievement and Chest	Water Barrier Seelie
Rag and Bone Shop

4.0 Fontaine Puzzles and Features

4.0 Fontaine Features
Fontaine Aquabus Guide	Court of Fontaine Waypoints Unlock Guide
Heart Plant Co-Op Hidden Chest	Sonar Resonance Points
Underwater Currents	High-Pressure Water Vents
Recovery Orb	Fontaine Echoing Conch
Fantastical Floating Ball	Pneumosia Blocks
Miraculous Hydrograna	Beastly Rifts
Bullet Barnacles	Fontaine Aircrafts Guide
The Prism in Elynas	Water Volume Detection Crystal
Pneumousia Relay Guide	Pneumousia Storage Box
Sunken Objects	Scenic Attractions
Adjust the Prism	Berrypuff Hidden Quest
Locked Underwater Dome	Break the Treasure Seal
Break the Bubble Formations

Fontaine Enemies

Fontaine Boss Guides
Emperor of Fire and Iron	Icewind Suite	Millennial Pearl Seahorse
Experimental Field Generator	Hydro Tulpa	Legatus Golem
All-Devouring Narwhal	The Knave
Fontaine Enemy Guides
Fontemer Aberrants	Tainted Hydro Phantasm	Breacher Primus
Clockwork Meka	Fatui Operatives	Praetorian Golem
Local Legends Guides
Iron Viscount	Fairy Knight Twins	Ocean Circuit Judge
Vivianne of the Lake	Fading Veteran	Swords of the Gorge
Ninianne of the Lake	Dobharcu, Lord of the Hidden	Automated Supercomputing Field Generator
Luachra the Brilliant	Yseut	Liam
Rocky Avildsen	Mageblade Corrouge	Chassanion
Deianeira of Snezhevna	Cineas

All Interactive Map Guides

All Interactive Map Guides