Hey there, fellow Travelers! It's 2026, and I find myself looking back fondly on some of the classic event formats that HoYoverse has perfected over the years. One that always brings a smile to my face is the Lost Riches event. I remember diving into the Liffey Region back during the Genshin Impact 4.3 iteration like it was yesterday. The feeling of plunging into those deep, mysterious Fontaine waters, with only my wits and a helpful Seelie to guide me, was pure adventure. Today, I want to share my personal walkthrough of that fourth day's challenge. Think of this as a seasoned adventurer's diary entry, filled with the tips and tricks I wish I'd known before I got my feet wet.

Let's get our bearings first. The Liffey Region, serving as Treasure Area 4, was this expansive underwater zone that became accessible on the event's fourth day. My main objective was straightforward but thrilling: find and energize my loyal little Treasure-Seeking Seelie. To do that, I had to locate three distinct Energy Emissions hidden inside those tricky Mist Bubbles. The real challenge wasn't just finding them, but solving the unique puzzle or combat trial that guarded each one.

My adventure began the moment I teleported to the underwater waypoint. Energy Emission 1 was practically right in front of me, a beacon calling out from the deep. This one kicked things off with a classic Pufferfruit challenge. The goal? Pop all the glowing yellow Pufferfruits while meticulously avoiding the dull brown Dirty Fruits. A single hit on a Dirty Fruit would reset the whole trial—talk about pressure! My strategy here was patience. I took a moment to survey the bubble's layout before making my first move.

For the second emission, I had to swim east from my starting point. This Pufferfruit challenge was a step up in difficulty because some of the fruits were moving! 🍎 This is where the local wildlife became my best friend. I made a beeline for the nearest Xenochromatic Jellyfish. Using its special ability, I could create area-of-effect blasts that took out multiple Pufferfruits safely from a distance, minimizing the risk of an accidental hit on a Dirty Fruit. It felt incredibly satisfying to use the environment to my advantage.

The final leg of the energy hunt took me north. Energy Emission 3 swapped puzzles for pure action. As soon as I interacted with the Mist Bubble, a group of Fontemer Aberrants appeared, ready for a fight. My trusty Xenochromatic abilities were crucial here too. Whether it was the Jellyfish's blast or the Hunter's Ray's homing missiles, using these aquatic powers was not just effective—it was essential for dealing with these hydro-aligned foes efficiently. After a brief but intense skirmish, the third and final energy pulse was mine.

With all three emissions activated, the magic happened. My Treasure-Seeking Seelie, now fully energized, zipped off and pinpointed the exact burial spot of the treasure on my minimap. The excavation revealed a glorious Precious Chest. Let me tell you, the rewards were absolutely worth the effort:

• 20 Primogems (always a welcome sight!)

• 90 Ancient Iron Coins for the event shop

• A hefty sum of Mora

Looking back, here are the core lessons I learned that day in the Liffey Region:

1. Embrace the Local Fauna: The Xenochromatic abilities aren't just a gimmick; they're your primary tool for both puzzle-solving and combat underwater. Get comfortable with them.

2. Precision Over Speed: In the Pufferfruit challenges, a slow and steady approach will save you from frustrating resets. Aim carefully!

3. The Seelie is Your Partner: That little blue guide is more than just a marker. Its behavior changes when you're close to an energy source, so pay attention to its cues.

Completing that fourth day in the Liffey Region was a perfect blend of exploration, puzzle-solving, and combat that reminded me why I love Genshin Impact's event design. It wasn't just about the rewards at the end (though they were great); it was about the journey through that beautiful, submerged landscape. I hope this walkthrough from my own archives helps you appreciate the craft of these events, whether you're reminiscing or tackling a similar challenge in a future update. Happy treasure hunting, and may your adventures always be bountiful! ⚓