The Mermaid Cove is the centerpiece of Fisch’s Version 1.80 update, the eighty-first release version of the game. This mini-update brought a brand new secret location, a shell-collecting quest, powerful time-limited buffs, and the long-awaited Rod Mastery for the MiguRod. If you want to make the most out of everything this update has to offer, this guide covers it all from start to finish.
What Is the Mermaid Cove?

The Mermaid Cove is a secret point of interest near the Grand Reef, home to the Calyra NPC, who gives players a buff in exchange for her shells that were scattered across the world. According to the in-game lore explained by Calyra herself, the chaos that unfolded in Atlantis during the previous update sent her shells flying all over the map, and it is now up to players to track them down and return them to her altar.
How to Enter the Mermaid Cove
Getting to the Mermaid Cove requires a short underwater detour at Grand Reef. Here is how to reach it step by step:

- Head to the Grand Reef and make your way to the middle island.
- Dive underwater near the Bubble Mermaid and swim toward the entrance of Atlantis.
- Move slightly to the right to find a crack opening at GPS coordinates (-3855, -75, 443).
- Swim through the crack to enter a secret hallway, follow the path all the way down, and drop to the bottom.
- Climb up the rocks at the end to arrive at Mermaid Cove.
Inside, you will find a small area with the Calyra NPC sitting on a throne and the Shell Altar placed in front of her. This is where you will offer the shells in exchange for your buffs.
How to Get Calyra Shells
This is where most players spend the bulk of their time, and for good reason. There are no fixed locations in Fisch where you can obtain the Calyra Shells. They are random items that spawn around the edges of any beach.

That said, some locations are more productive than others. The shells tend to spawn in higher numbers on beaches at Moosewood, Ancient Isle, Forbidden Shores, Lost Jungle, Terrapin Island, and Roslit Bay, so start your search there before moving on to other islands. Shells can also spawn at Grand Reef, Herapin Island, Forsaken Shores, and even smaller islands that technically have a shoreline, so no coastal area is completely off the table.
Beyond picking them up off the ground, there is a second method. Calyra Shells can also be fished from the sea. Using a Steady or Magnet Rod with Garbage bait in beach areas gives you a chance of reeling one out of the water. The fishing method works similarly to treasure maps, where the shell drops as a bonus alongside a caught fish, with roughly a one-in-one-hundred chance per catch.
There are five standard shell variants in total: Shell of Depth, Shell of Endurance, Shell of Fortune, Shell of Swiftness, and Shell of Wrath. A sixth variant, the Corrupt Shell, functions differently from all the others.
All Shell Buffs Explained
Each shell you offer at the altar grants a 30-minute buff. Below is a breakdown of every variant and what it does:
- Shell of Swiftness: +20% Movement Speed, +20% Lure Speed, +10% Progress Speed
- Shell of Fortune: +50% Luck, 25% chance to duplicate caught fish, +25% Natural Mutation chance
- Shell of Endurance: +0.05 Control, +20% Resilience
- Shell of Depth: +20% Fish Size, infinite max kg weight capacity, +50 Line Distance
- Shell of Wrath: +25% XP, +5 Disturbance, ability to fish in any liquid
The Corrupt Shell is the wildcard of the group. Unlike the others, its buff duration is not fixed at 30 minutes. Instead, it lasts anywhere between 5 minutes and a full hour. In exchange, it grants five random buffs pulled from the pool of all the standard shells listed above, making it a high-variance but potentially very rewarding option.
To use any shell, you simply consume it directly from your inventory after offering it at the altar. The active buffs then appear on the bottom left side of your screen.
MiguRod Mastery Is Now Live
Version 1.80 did not stop at the Mermaid Cove. The update also added the long-awaited Rod Mastery for the MiguRod. The MiguRod is a Stage 8 Fishing Rod obtained from completing an elaborate set of puzzles, and its mastery chain comes with several notable rewards.
Completing the mastery questline unlocks a passive enhancement that causes a special prompt to appear periodically while fishing. Players must press Shift quickly when it appears, which adds bonus progress speed toward the center of the catch bar. The mastery also rewards the Mesmerizer title, the Mesmerized title, Amphibian Boots (which build up movement speed the longer you walk and also boost jump height), a Pear Lantern, and a Baguette supporter halo. The Baguette halo is exactly what it sounds like: a spinning baguette that orbits your character’s head.
A New Secret Hunt
Alongside the Mermaid Cove content, speaking to NPCs Mach and Pawu in the game world opens up two additional quests tied to a brand new secret hunt. A broken phone has appeared in the game world, and the community is working collectively to figure out how to repair it. Details remain incomplete, and the Fischipedia page for Version 1.80 is being updated as discoveries are made. Clues found so far include a code reading “VZK” that appears when the phone is held near certain in-game objects, but the full solution is still being worked out by the community.
Quick Tips Before You Start
- Prioritize the beaches at Moosewood and Roslit Bay first since they are well-traveled and easier to sweep quickly.
- If you are farming shells through fishing, Garbage bait paired with a Steady or Magnet Rod is your most efficient setup.
- Stack a Shell of Fortune before any long fishing session to take advantage of the duplicate fish and natural mutation bonuses.
- Do not overlook the Corrupt Shell. Even a short 5-minute window with five active buffs can be worth using during a focused grind.
- The MiguRod mastery prompt requires a quick Shift press, so pay attention to your screen while fishing.
The Mermaid Cove update is a welcome addition to Fisch that gives both casual and dedicated players something new to pursue. Whether you are farming buffs for a fishing grind or pushing through the MiguRod mastery chain, there is plenty to keep you busy while the community continues cracking the mystery of the broken phone.
Also Read: Legionnaire Lamprey in Fisch Roblox: How to Trigger the Hunt and Catch the Exotic
Stay updated with the latest news and leaks with Fans First Booyah!
I am Tanmoy Nath, a gaming writer and Roblox enthusiast with over 6 years of experience covering online games. I have been playing Roblox since 2022, with a deep focus on games like Fisch, Grow a Garden, Paradox, and popular tycoon titles. At Fans First Booyah!, I write beginner guides, tier lists, and update breakdowns – all based on hands-on gameplay rather than secondhand information. My aim is to help both new and experienced Roblox players get the most out of every game they pick up.
