The Luminescent Cavern is a new POI in Fisch that is located within the Desolate Deep and can only be opened if you collect all the 9 Keystone spread across the first sea. So, if you are eagerly waiting to enter the Luminescent Cavern, here is the perfect guide for you to follow.
Where are all the Keystones located in Fisch?
Below, I have mentioned all the Keystones located in Fisch and the fastest way to reach them. Just follow them, and you will enter the Luminescent Cavern in no time.
Turtle Keystone
The Turtle Keystone is inside the Terrapin Hideaway on the Terrapin Island. This is a small cave-like area in the middle of the island located at (60, 147, 2025). Enter the cave and further go inside the small room to find the item.
Skull Keystone
For the Skull Keystone, travel to the Forsaken Shore. Here, on a small cliff, you can find the orange colored Skull Keystone next to the Jack Marrow NPC at (-2800, 209, 1540). Jack Marrow, or the Pirate NPC, is the one who fixes the treasure maps.
Fossil Keystone
The Fossil Keystone is on a small rock hanging from a crane right at the center of the Ancient Isle. Go to (6075, 230, 259) and you can easily find the Stone. I recommend using a Glider to reach the place safely.
Mushroom Keystone
The Mushroom Keystone resides on a wooden boat right in the middle of the Alligator Marsh in the center of the Mushgrove Swamp at GPS (2680, 125, -7160).
Cliff Keystone
The Cliff Keystone is a bit tricky to find as it is located deep inside the Castaway Cliff. For this, climb the Cliff on the Castaway by walking through the paved pathway until you reach a slope in the middle with a tree on the left side. Just look behind this tree to find the glowing Cliff Keystone at (473, 230, -2159).
Snowflake Keystone
The Snowflake Keystone is inside the Snow Burrow, which itself is a small area on the Snowcap Island. Travel to Snowcap Island and go towards the back of the island, and you can enter Snowcap Cave. Now, press the three cracks to open the Snow Burrow to enter, where you can find the Snowflake Keystone at (2790, 155, 2575).
Sun Keystone
The Sun Keystone is present on a wooden barrel inside Merlin's Hut on Sunstone Island. You can find her Hut at the topmost part of the island at GPS (-938, 225, -988).
Volcano Keystone
The Volcano Keystone is right at the center of the Roslit Volcano. Travel to Roslit Bay and enter the Volcano Biome. Here, use your glider and go towards the center at (-1975, 178, 269) to find the Volcano Keystone below the central stone podium.
Lightning Keystone
The Lightning Keystone can be found on the first island in Grand Reef. You can find it at GPS (3430, 137, 265)
After collecting all the Keystones, you can return to Desolate Deep and place the Keystones one by one to create a crack in the wall. Go through the crack to enter the Luminescent Cavern.
For more on Fisch, check out Roblox Fisch Trading Value List or All Brick Rod Titles and Timing Requirements - Fisch
Vignesh Raja started as a Freelancer and became a Full-Time Staff writer at Pro Game Guides in March 2024. He has an engineering degree in IT and was previously a Semi-Professional Apex Legends and Paladins eSports player. His passion for multiplayer games made him pursue a career in writing to share his knowledge about competitive gaming. Nowadays, he spends his time writing guides for Valorant, BitLife, and Roblox. Also, he manages and coaches upcoming BGMI players in his free time to help them thrive in India's competitive eSports scene.