Aqueous Tidemarks is a quest for Genshin Impact. Guide contains how to unlock, map & location, achievement, walkthrough, answers, luxurious chest, hydroculus, exploration, tips, & rewards.
Table of Contents
Aqueous Tidemarks - How To Unlock & Location
No Prior Quest Required
Talk To Virgil At The Court Of Fontaine
| Map | Location |
|---|---|
  |  |
Once you reach the Court of Fontaine, you can immediately get this quest from Virgil near the Statue of the Seven.
Completing This Quest Unlockes Azure Dash
Azure Dash, a mini-game that is part of Meka Melee Event, can only be unlocked after completing Aqueous Tidemarks. For version 4.0, it is better to do this World Quest as soon as possible.
Mega Meka Melee Event GuideAqueous Tidemarks - Walkthrough & Tips
Aqueous Tidemarks Walkthrough Chart
| Procedure | |
|---|---|
| 1 | Talk to Virgil |
| 2 |  Look for clues and follow the marked location underwater |
| 3 | Head to the deeper part of underwater |
| 4 |  Look for a stingray to get its ability before going even deeper as you cannot find one at the bottom |
| 5 |  Dive to the right side and hold the skill to cut the grass and get the Ancient Key |
| 6 |  Proceed deeper and cut the grass that is blocking the path └ Can use a separate attack for each grass |
| 7 |  Get the ability of the crab nearby to get its ability then hold the skill to destroy the fragile rock that is blocking the path |
| 8 |  Access the mechanism and use the Ancient Key to open the gate then proceed ahead |
| 9 |  With crab's ability, hold the skill to destroy the fragile rock that is blocking the path then proceed ahead |
| 10 | Resurface then approach the marked spot |
| 11 |  Get the orb then hit the pillar with different color for balancing then activate the mechanism when the 2 pillars are balanced |
| 12 | Dive then proceed to the opened path └ A Hydroculus can be obtained  |
| 13 | Prepare to defeat clockwork meka upon resurfacing then proceed ahead |
| 14 |  Go to the bottom and activate the mechanism then make your way above |
| 15 | Keep proceeding ahead |
| 16 | Defeat the Ruin Guard then activate the mechanism |
| 17 |  Investigate the marked spots |
| 18 |  Deal with the Ruin Grader then attack the glass wall when the prompt shows up |
| 19 | Follow the current and the quest is automatically completed once you reach the Thalatta Submarine Canyon |
5. Ancient Key Location - Tips
Only Appears During Quest
The Ancient Key can only be obtained as you proceed with the quest.
Ancient Key Guide8. Crab Ability - Tips
To Block Underwater Currents
The shield from Crab's ability can prevent you from getting pushed by underwater currents. This is useful when exploring underwater.
To Destroy The Shooting Geyser
While you have the crab ability, hold the skill and wait for the projectile from the shooting geyser to reach you. Once the blue circle shows up, release the skill to shoot a projectile to destroy the geyser. This tactic is similar to defeating the Iron Viscount.
How To Defeat Iron Viscount?Hydroculus On The Upper Left Corner
Destroy the shooting geyser on the upper left corner to get a Hydroculus.
10. Activate The Waypoint - Tips
Can Be Used To Return Quickly
This specific waypoint will be useful when the quest has been completed as you may want to return to this area for exploration. Also, you can obtain 5 Primogems by activating it.
11. Enigmatic Page - Tips
Obtain The Enigmatic Page 4
Inspect one of the crates in the area to obtain the Enigmatic Page 4.
15. Hidden Room - Tips
Hydroculus & Precious Chest
Before reaching the marked spot, turn back and reach the platform across the water. Access the mechanism to open the door and get the Hydroculus & Precious Chest with Drained Conch Cup inside.
16. Activate The Waypoint - Tips
Can Be Used To Return Quickly
This specific waypoint will be useful when the quest has been completed as you may want to return to this area for exploration. Also, you can obtain 5 Primogems by activating it.
Aqueous Tidemarks - Rewards
Rewards List
- Adventure EXP x 500
- Primogems x 40
- Hero's Wit x 3
- Mystic Enhancement Ore x 5
- Mora x 30,000
Luxurious Chest Can Be Claimed
Aside from the rewards listed above, you can also claim a luxurious chest when the quest is completed.
Acquire A Hidden Achievement
You can acquire the Encyclopedia of Natural Philosophy achievement when entering the institute for the first time.
All Achievements ListUnlock The Narzissenkreuz Ordo
Claim The Hydroculus
After completing the quest, return to the location where you fought the Ruin Grader to claim the Hydroculus.
Hydroculus Location & MapEnter The Institute Of Natural Philosophy
From the Hydroculus, go forward and interact with the book on the table to teleport inside the Institute of Natural Philosophy.
Obtain Enigmatic Page 11
You can obtain the Enigmatic Page 11 from a shelf on the left side upon entering the institute.
Fontaine Enigmatic Pages Locations & UsesGet The Key To Some Place In The Institute
Aside from Enigmatic Page XI, you can also get the Key to Some Place in the Institute from an exquisite chest inside the institute.
Key To Some Place In The Institute GuideGet The Drained Conch Cup
Near the exquisite chest, you can get 1 Drained Conch Cup from the precious chest together with 20,000 Mora.
Drained Conch Cup GuideUnlock Unfinished Story & The Final Question
You can unlock Unfinished Story & The Final Question when you enter The Narzissenkreuz Ordo after you complete two quest series namely: Ann of the Narzissenkreuz & Ancient Colors.
Complete Ann's Story: Prologue
After finishing Unfinished Story & The Final Question, Ann's Story: Prologue gets completed. This provides reputation EXP x20.
Fontaine Reputation System GuideGenshin Impact - Related Quest Guides
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Chapter 5 Act 3
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Chapter 1 Act 1
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Chapter 1 Act 4
Chapter 2 Prologue
Chapter 2 Act 1
Chapter 2 Act 2
Chapter 2 Act 3
Chapter 2 Act 4
Interlude Act 1
Interlude Act 2
Interlude Act 3
Chapter 3 Act 1
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Chapter 3 Act 3
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Chapter 3 Act 5
Chapter 3 Act 6
Chapter 4 Act 1
Chapter 4 Act 2
Chapter 4 Act 3
Chapter 4 Act 4
Chapter 4 Act 5
Chapter 4 Act 6
Chapter 5 Act 1
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