How to Fish Third Island Guide: Unlock Island 4

Complete the full third-island route in order

Island 3 is a sequence of objective checks rather than a hidden location puzzle. Keep every quest catch and boss reward intact until the next objective visibly updates.

Reach Island 3 from the Forest stage

Continue the Island 2 woman’s dialogue until she requests three leeches, collect the ground-spawn items, and return the full count. Use the resulting bait to trigger Giant Piranha, preserve the tail after the fight, and bring it back to the woman. Do not search for a secret third-island shortcut before the objective and travel step update.

Finish the tourist and endangered-creature task

Speak to the Island 3 tourist before fishing for the quest. Inspect catches and use the endangered label shown by the game as the deciding evidence rather than relying on one fixed species name from a guide. Keep the marked creature intact: selling, cooking, eating, or otherwise losing it prevents the hand-in that rewards the Carrot.

Use the Carrot and return the Pufferfish Fin

The Carrot is a single-purpose progression item, not a regular lure tier. Equip it only after the tourist objective advances, cast to start Pufferfish, and use the focused boss guide for the cover-and-movement strategy. After the boss falls, locate the Fin, identify its carrier in co-op, and return that player to the tourist before expecting Island 4 to appear.

Fix a third-island route that stopped advancing

Work backward from the last confirmed objective update. Check whether Giant Piranha’s tail reached the Island 2 woman, whether the tourist received an intact endangered catch, whether the Carrot was preserved, and whether the Pufferfish Fin was actually handed in. Official patch 1.0.5 removed an unintended locked-island skip, so current progression should follow these objective gates.

• In co-op, compare inventories and bring the quest-item carrier to the NPC.
• Read the live objective after every hand-in instead of sailing away immediately.
• Use Easy mode only for a combat blocker; it does not complete a missing quest step.

Reach the third island through the current objective chain

The third island is the Desert stage in the five-stage route, but knowing its name does not bypass the Forest objectives. Continue the Island 2 woman’s conversation until the three-leech request is active, collect the ground-spawn leeches, and return all three. The next reward is used to trigger Giant Piranha. Defeat the boss, preserve its tail, and bring that tail back to the woman. The new travel objective is the reliable signal that Island 3 is available.

If the destination does not appear, check those gates in reverse order before searching for a hidden path. Confirm that the leech count was submitted, the boss appeared through the intended bait, the tail entered a player inventory, and the carrier completed the hand-in. In co-op, another player may hold the required item even when everyone saw the same fight end. Official patch 1.0.5 removed an unintended route to locked islands, so an older skip video is not a current substitute for the objective chain.

Complete the Island 3 tourist request without losing the catch

Speak to the tourist before beginning the endangered-creature search so the objective is visible. Fish on Island 3 and inspect the catches that can be carried to the NPC. The useful confirmation is the endangered label shown by the game, not a species name repeated by an old comment. A fixed-name answer can become misleading when players catch several valid creatures or a patch changes the pool. Let the live label decide whether the catch belongs to the quest.

Keep the marked creature intact after it lands. Do not sell, cook, eat, discard, or leave it with a player who sails away. Bring the carrier to the tourist and wait for the hand-in and reward to register. The tourist supplies the Carrot used for Pufferfish. If no Carrot appears, recheck the active objective and the inspected catch before spending another lure. This is a progression test, while the Lure Guide remains the correct page for ordinary Fishipedia catch pools.

Turn the Carrot into the Pufferfish Fin hand-in

Treat the Carrot as a unique quest item rather than a normal upgrade. Equip it only after the tourist step has advanced, cast from Island 3, and confirm that Pufferfish enters the encounter. The focused Pufferfish guide owns the fight itself: prepare healing and ammunition, identify useful cover before casting, keep moving around the trees, and take short ranged damage windows instead of becoming trapped during a reload. Current difficulty can change damage expectations without changing the quest order.

After Pufferfish is defeated, search the remains and collect the Fin. Winning the fight does not automatically finish the island route. Name the Fin carrier in co-op, return that player to the tourist, and wait for the next route or coordinates to appear. If the Fin is missing, inspect every player inventory and the boss area before repeating the endangered-creature task. A completed Carrot hand-in and fight should be diagnosed from the Fin forward, not restarted from Island 2 without evidence.

Unlock Island 4 and diagnose a route that still looks blocked

Island 4 unlocks after the Pufferfish Fin reaches the tourist and the objective updates. Do not sail away during the interaction or assume the boss kill alone granted travel. Read the new text, identify the available destination, and keep the group together until host and guests see the same state. The next stage is the Rocks route, where Professional catches and the Tuna-to-Albatross chain become relevant. Open the full Walkthrough only when you want that later order rather than adding unrelated Island 4 steps to this focused guide.

When progress remains blocked, record the last visible confirmation: Desert travel, endangered label, Carrot reward, Pufferfish trigger, Fin pickup, or tourist hand-in. That checkpoint narrows the missing step immediately. Difficulty settings can help when Pufferfish combat is the blocker, but they cannot manufacture a missing quest item or complete an NPC interaction. Avoid deleting saves, using an obsolete island skip, or repeating every encounter at once. Preserve the current version and co-op roles if the objective states still disagree after the exact carrier revisits the tourist.

Frequently asked questions