Catching the Plesiosaur in Fisch Roblox isn’t about just casting your line and hoping for luck. This rare fish hides behind a puzzle and only appears during a special event. If you’ve been fishing around Tidefall but can’t find it, it’s because you haven’t unlocked the secret area or waited for the right moment. Let me guide you through the exact steps to catch this elusive creature.
You need to unlock Tidefall Castle first
The Plesiosaur lives inside Tidefall Castle, but the door is locked tight. To get in, you must solve the Obelisk puzzle by offering specific exotic items to five different Obelisks scattered around Tidefall. Each Obelisk requires a unique offering caught during its own hunt event. Here’s what you need:
| Obelisk | Location | Offering | How to get it |
|---|---|---|---|
| Gold Runic | Left of Crowned Ruins entrance (3305.7, -1118.4, 1801.9) | Goldwraith (Exotic) | Crowned Ruins hunt event; use Sapphire Krill bait at night |
| Sky Blue Runic | Lane entrance to Coral Bastion (2872.4, -1067.8, 981.3) | Reef Titan (Exotic) | Coral Bastion hunt event; no special bait or weather needed |
| Orange Runic | (3273, -1106, 864) behind Tidefall shop | Pliosaur (Exotic) | Collapsed Ruins hunt event; catch Pliosaur with Sharkhead bait during foggy winter nights |
| White Runic | Next to Tidefall waterfall entry (3089.8, -1099.6, 987.9) | Sparkling Dripstone (Trash) | Fish in Tidefall region using Training Rod + Appraiser |
| Purple Runic | Northeast of Tidefall shop (2876.9, -1091.7, 744.6) | Omnithal (Exotic) | Sunken Reliquary hunt event; catch Omnithal with Luminous Larva bait during foggy winter nights |
Note that the Pliosaur and Plesiosaur are different fish. The Orange Runic Obelisk requires the Pliosaur, which you catch in Collapsed Ruins. The Plesiosaur only appears inside Tidefall Castle after you finish this puzzle.
Once you place all offerings, you’ll see a message saying, "You Hear the Sound of Something Opening." That means the castle door is unlocked. Head to the western side of Tidefall, glide over the water to the green area, enter the castle’s inner door, and get ready to fish in the secret pool inside.
Wait for the Plesiosaur hunt event
The Plesiosaur won’t show up anytime you want. It only appears during a rare server event called the Plesiosaur Hunt. This event has about a 0.25% chance to start at the beginning of each in-game day. When it happens, you’ll see a server-wide message: "A Plesiosaur has been spotted in the area."
The Plesiosaur is an Exotic fish, and there’s even a rarer Divine Secret version called the Forbidden Plesiosaur, marked by a black exclamation mark. To speed up the chance of this event, use Sundial totems to fast-forward the celestial cycle. Aurora totems boost your luck during the event, and Smokescreen totems create foggy weather, which helps increase bite rates.
Prepare the right gear and conditions
Catching the Plesiosaur is no easy feat. It fights hard and can break your line if you’re not prepared. Here’s what you need:
- Best rods: Fabulous Rod is the top choice. Ruinous Oath or Rod of the Forgotten Fang also work well
- Bait: Sharkhead bait is the best for exotic fish. It improves your chance of bites and reduces wasted casts.
- Time and weather: Fish at night during foggy weather in winter for the highest chance of bites.
Enchant your rod with luck and resilience to make the fight easier (All Fisch Enchantments in Roblox Fisch (Full Guide)).
How to catch it once it bites
When the Plesiosaur bites, you’ll see an exotic exclamation mark and hear a shimmering sound. The fight is long and tricky because the fish moves in unpredictable ways and slows your progress by about 90%. Stay calm, keep the fishing bar steady, and don’t rush. Patience is key here.
You can catch it multiple times
Every time the Plesiosaur Hunt event happens, the Plesiosaur becomes catchable again. Many players farm it repeatedly to complete their bestiary or collect rare rewards.
Avoid common mistakes
- Don’t fish inside Tidefall Castle before unlocking it.
- Never try to catch the Plesiosaur outside its hunt event.
- Avoid using low-tier rods; they usually fail.
- Don’t ignore weather, time, or bait preferences.
- Stay calm during the fight; panicking leads to failure.
Catching the Plesiosaur in Fisch Roblox is a rewarding challenge that mixes puzzle-solving, timing, and skill. Once you unlock the castle and prepare properly, the hunt becomes much easier. Follow these steps carefully, and you’ll soon add this rare fish to your collection.
