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The Lobster Trip update inRoblox’s Fischbrought a tidal wave of new content, including Lobster Cages, fish schools, new boats, and some of the most unique mechanics the game has ever seen. But among all the additions, nothing feels quite as mystical as the Lobster Altar hidden deep in Netter’s Haven.
To get there, you will need to do more than just show up. The Altar requires six rare offerings, each of which must be placed upon stone pedestals. These aren’t easy to come by; some involve Shiny lobsters, others require rare quest items or weather-locked catches.

How To Access Netter’s Haven Cave
You will find the Lobster Altar carved into a massive stone wall at the back ofNetter’s Haven, located in theSecond Seaat the following coordinates:-775, 90, 950. Once you arrive, you will notice a large stone passage sealed off by jagged rock. In front of it standsix stone pedestals, each waiting for aspecific offering. Placing the correct items onto all six pedestals will open the path into the cave. Below is a full list of the required items, along with detailed info onhow to obtain each one.
Required item
How to get
Lobster Roll
Talk to Chef Larry onLobster Shores at -607, 155, 2697. Complete his quest by catching the requested Lobster with a specific weight and mutation. This quest is repeatable.
Shiny Ancient Lobster
Found in theAncient Lobster poolnear Ancient Isle in the First Sea.
Caught in theSlipper Lobster poolnearLushgrovein the Second Sea.
Shiny Rock Lobster
You can get it in theRock Lobster pool nearPine Shoalin the Second Sea.
Fish in theWestern Rock Lobster pooljust offshore from Netter’s Haven
Moon Idol Sea 2
Head toLushgrove at 1410, 155, -580and use aBlue Moon Totemto open the hidden bunker. Fish inside to catch the idol.
Fishing for these lobsters requires the right gear. You should use aUtility BoatandLobster Cages, so make sure to purchase and spawn one from the Utility Shipwright in Lobster Shores.
For the best results,we recommend using the Obsidian Cage or the powerful Cursed Cage, which provide significantly better Luck and Max Kg to help you catch mutated variants faster.
Once you’ve gathered all six offerings,return to the Lobster Altar and place each item on its pedestal. When all the fish are in place,the stone wall will slide open, revealing the entrance to Netter’s Haven Cave and the glowing Lobster King Pool within.