In the Roblox simulator Prehistoric Farm by Project Mirvy, rare catches are high-tier aquatic rewards tied directly to the game's open-sea exploration. The official game description highlights this activity under its core features: "Fish the open sea and dive for rare catches."
Navigating toward rare catches requires leaving the starting shoreline, upgrading your vessels, or mounting aquatic creatures. This guide details verified ways to reach open water, how fishing and diving function, and what rewards are currently confirmed.
How to Access Rare-Catch Waters
You cannot reach rare catches from the initial ranch grounds alone. The game gates open-sea access behind maritime travel, offering two distinct paths to get onto deep water.
1. Upgrading Your Boat
Every voyage starts at the home island dock near spawn. While your starter rowboat allows you to reach nearby dig sites like the Cambrian area, reaching deeper waters and distant islands requires boat upgrades:
| Boat Name | Price | Top Speed | Handling | Capacity |
|---|---|---|---|---|
| Dinghy | Free (Starter) | 12 kn | 88% | 2 Seats |
| Banks Dory | 4,000 Coins | 14 kn | 76% | 3 Seats |
| Console Skiff | 60,000 Coins | 29 kn | 96% | 4 Seats |
| Lobster Boat | 300,000 Coins | 37 kn | 73% | 6 Seats |
The starter Dinghy is described by players as quite slow. Saving 4,000 coins for the Banks Dory offers a quick boost in speed and seat capacity, paving the way toward farther waters.
2. Riding an Aquatic Dinosaur
If you lack the coins for higher-tier boats, third-party guides highlight an alternative: raising an aquatic dinosaur. Once fully grown, mature marine reptiles can be mounted, enabling you to travel across open water without waiting on boat purchases.
Open-Sea Fishing vs. Diving
The official game description pairs fishing and diving together, but available gameplay and guide documentation distinguish how each activity contributes to rare finds.
Diving for Rare Catches
Diving is explicitly singled out by guides as the primary action for securing rare catches on open water.
- Yield: The official description and independent guides confirm that dives yield items classified as rare catches.
- Current Limitations: The developer has not published dedicated diving input prompts or underwater stamina gauges. The game operates on PC, mobile, and console, but specific diving controls remain unlisted in the standard tutorial.
Open-Sea and Shoreline Fishing
Surface fishing is available early and serves as an active mini-game across shallow and deep waters:
- Obtain Bait: Bait can be purchased directly at fishing locations, with standard vendor rates offering 5 casts for 5 coins.
- Cast the Line: Cast into the water. Timing your throw properly triggers an on-screen "Perfect throw" rating.
- Wait for a Bite: An alert will announce when a target bites (such as "Swordfish bite").
- Reel In: Land the catch into your inventory. Casts can occasionally yield nothing, which is normal behavior.
Confirmed Catches and Collection Entries
Documented gameplay sessions have confirmed four regular shoreline fish:
- Mackerel (common pull, frequently caught in streaks)
- Sardine (standard small catch)
- Puffer Fish (standard haul)
- Swordfish (higher-tier bite, considered lucky by players)
Outside standard fish, the game's collection menu tracks 80 total prehistoric entries. Notably, the Cretaceous Seas category contains 6 entries documented as rare eggs obtained specifically while fishing, rather than dug up from land-based fossil deposits.
What to Do with Your Catches
Once you reel in your haul or collect items from the sea, you have two primary options:
- Feeding Carnivorous Dinosaurs: Caught fish serve as a verified food source for meat-eating dinosaurs. Dinosaurs require their Belly gauge to remain above half full to continue aging through life stages (Newborn, Juvenile, Subadult, Adult, and Elder).
- Selling for Coins: In recorded gameplay, standard shore fish yielded modest sale returns (around 5 to 10 coins each). Because prices are low, using fish to sustain your ranch carnivores is generally more practical than selling them for quick cash.
- Passing Incubation Downtime: Fishing requires minimal coin investment and works well to pass the time while Dr. Ivy's DNA Lab warms eggs in the incubator.
Other Open-Sea Encounters
While searching for rare catches, you share the open sea with two advanced encounters highlighted in the game's Explore menu:
- The Sunken Grotto: A specialized stealth encounter where players sneak in to steal sea reptile eggs. This is separate from normal open-water diving.
- The Giant Mosasaurus: A cooperative world event where players team up to battle a massive sea creature using spears.
Frequently Asked Questions
Are specific rare catch fish species named in the game?
No complete species drop table or rare catch item list has been published by the developers. Current documentation identifies the four common fish (mackerel, sardine, puffer fish, swordfish) and the 6 fishable Cretaceous Seas collection eggs, while general rare catches remain a distinct open-water reward category.
Can you dive from the starter boat?
You can take any vessel out onto the water, but official progression recommends upgrading to bigger boats or using an aquatic dinosaur mount to reliably navigate open-sea areas.
How do I get bait for fishing?
Bait is purchased directly at fishing stations along the shore and docks for 5 coins per bundle of 5 casts. Make sure your inventory holds bait before throwing your line.
