1Quick Answer
Find Flounder in Rocks Island (Island 4) fishing waters. Use Fishing Rod in the Unconfirmed catch method; no separate lure is needed. Flounder is not in the Professional Lure catch pool. Its current catch method remains unconfirmed.
2Flounder Data Overview
- Creature type
- Regular
- Island
- Rocks Island (Island 4)
- Area
- Rocks Island (Island 4) fishing waters
- Catch method
- Starter pool catch
- Required rod
- Fishing Rod
- Fishing pool
- Unconfirmed catch method
- Base coins
- No fixed value
- Route
- Collection
- Related quests
- No direct quest
- Achievements
- Collector · Fishipedia · Drip
3Where to Find Flounder
Flounder appears during the Rocks Island (Island 4) route around Rocks Island (Island 4) fishing waters. Match the rod and bait shown below, then check the in-game Tab encyclopedia after the kill.

Rocks Island (Island 4)
The red Radar marker and Professional Lure tier, with a twelve-target weighted pool plus the Tuna-to-Albatross story encounter.
Required setup
- Area: Rocks Island (Island 4) fishing waters
- Method: Starter pool catch
- Rod: Fishing Rod
- Fishing pool: Unconfirmed catch method
- Route: Collection
Keep going
Use the island, bait and quest links below when this catch is part of a longer objective.
4How to Catch Flounder
Use the Unconfirmed catch method.
No separate lure is needed.
Stay in the opening Lighthouse area.
Keep it separate from the other crab entries.
Use Tab to confirm registration.
5Catch Methods and Bait Data
Fishing Rod · Default pool · no bait equipped
Default pool6Sell Value and Is It Worth Farming?
7Rare Variant

Drip Flounder
Drip variants use the normal creature route and are tracked separately in the Tab encyclopedia. Watch for the rainbow-name treatment, kill the variant so it registers, and use blank encyclopedia entries for cleanup.
8Common Mistakes
- Using the wrong bait.
- Fishing on the wrong island.
- Skipping prerequisite dialogue.
- Trusting an old fixed-value table.
9FAQ
Where is Flounder in How to Fish?
Launch route data places it on Rocks Island (Island 4).
What bait catches Flounder?
Use the Fishing Rod in the Unconfirmed catch method; this opening-pool catch does not use a separate lure.
What is Flounder worth?
No fixed base value is shown here, and the final sale can change with Killscore, cooking and item condition.