Here's a detailed guide for the Echoes of the Deep Tides Domain in Genshin Impact:
Domain Information:
•Location: North of the Court of Fontaine, Fontaine Region
•Elemental Type: Hydro
•Domain Type: Domain of Forgery
How to Unlock:
•Adventure Rank: Must be at least 16.
•Region Access: Unlock Fontaine by completing the Archon Quest "Prologue: Act II - For a Tomorrow Without Tears."
•Specific Unlock: No additional quests are needed; just interact with the domain entrance in the Fontaine region.
Rewards Schedule:
•Monday, Thursday, Sunday: Fragment of an Ancient Chord
•Tuesday, Friday, Sunday: Echo of an Ancient Chord
•Wednesday, Saturday, Sunday: Movement of an Ancient Chord
•Every Sunday: All three types of weapon ascension materials are available.
Enemies:
All Levels:
•Meks: Intelligence Protocol, Exploration, Assault, Construction types
•Fatui: Agents, Pyro Agents
•Treasure Hoarders: Hydro Chemists, Scouts
•Ley Line Disorder: After triggering Hydro-related reactions on opponents, all party members receive a 10% Hydro DMG Bonus for 10 seconds, stackable up to 5 times.
Domain Step-by-Step Walkthrough: 
Entrance:
•Teleport to the waypoint near the Court of Fontaine, then head north. The domain is accessible without any puzzles or additional steps.
First Wave (Difficulty I - II):
•Enemies: Lower level Meks and Treasure Hoarders.
•Strategy: Use Hydro characters or those who can trigger Hydro reactions for the bonus. Characters like Xingqiu can provide off-field Hydro application.
Second Wave (Difficulty III - IV):
•Enemies: Tougher Meks, including specialized ones, and Fatui agents.
•Tactics: Focus on high DPS output and crowd control. Pyro can be effective against Hydro enemies, but be careful with the Hydro bonus effect.
Boss Wave:
•Enemies: A mix of high-level Meks and Fatui, potentially with more aggressive attack patterns.
•Strategy: Manage your team's positioning to avoid being overwhelmed. Use shields for protection against the Meks' strong attacks.
Rewards:
Basic Rewards:
•Weapon Ascension Materials based on the day of the week.
•Mora, Adventure EXP, and Friendship EXP.
•First Clear: 5 Primogems.
5 Strategies for Echoes of the Deep Tides: 
•Hydro Team: Leverage the Ley Line Disorder with a Hydro-centric team or characters that easily trigger Hydro reactions.
•Elemental Reactions: Use Electro and Cryo for Electro-Charged or Frozen to control the battlefield.
•Crowd Control: Anemo characters can group enemies, making it easier to deal with the Meks' numbers.
•High DPS: Include characters with high single-target or AoE damage to clear waves quickly.
•Defensive Options: Characters like Zhongli for shields or healers like Barbara for consistent healing are crucial when facing tougher enemies.
5 Tips for Echoes of the Deep Tides: 
•Day Planning: Schedule your farming days according to the weapon material you need.
•Character Levels: Ensure your team is at least at the recommended level for the difficulty you're attempting.
•Resin Management: Use Condensed Resin for double rewards if you can clear the domain quickly.
•Artifact Sets: Equip artifacts that boost Hydro DMG or Elemental Mastery to capitalize on reactions.
•Learn Enemy Patterns: Meks have specific attack patterns; understanding these can help in avoiding damage.
This guide should help you effectively navigate and farm in the Echoes of the Deep Tides Domain in Genshin Impact.
