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HOW TO FISH · STEAM PC

Volcano Island: Five Fish, Two Whales and the Black Boat

Complete the Scientist’s fish request, carry the first whale to the crater and unlock the ending boat.

Updated September 7, 2026

Start here

Fill the Scientist’s request and take Fish Bucket. Defeat Bowhead Whale, put its corpse into the crater, then defeat the mutated whale. Return Whale Fin and collect the keys for the black boat.

Fill the camp request

Find the yellow-suited Scientist beside the military tents and lava. Catch five fish locally, deliver them and take Fish Bucket at 5/5.

Yellow-suited Scientist with military tents and lava nearby
Find the yellow-suited Scientist by the camp. Tap image to enlarge. Image: Dazed Games / GamesRadar
Scientist dialogue showing 5/5 with bucket partly at the left edge
The Scientist offers Fish Bucket at 5/5. Version 1.0.10. Tap image to enlarge. Image: Source gameplay image

Move the whole whale to the crater

  1. Use Fish Bucket on the rod and catch Bowhead Whale. Defeat it on the ground.
  2. Pick up the whole corpse. Follow the wooden ascent near the camp toward the crater.
  3. Put the body into the lava; the Mutated Bowhead Whale encounter follows.
Whole Bowhead Whale above the molten crater
The whole whale is positioned over the crater’s lava. Tap image to enlarge. Image: Common Sense Gamer — Mutated Bowhead Whale

Leave after the final hand-in

  1. After killing the mutated whale, pick up Whale Fin with E.
  2. Return it to the Scientist and collect his offered keys.
  3. Board the black boat beside camp. Use Get back to the mainland [E] at its helm.
Black boat helm with return-mainland E prompt
Use Get back to the mainland at the black boat’s helm. Version 1.0.11. Tap image to enlarge. Image: Checkmark Academy

Sources and further reading

KpShamino

How to Complete Island 5 in How to Fish (Final Mutated Whale Boss)

How to Fish Game: How To Kill The Bowhead Whale Boss Island 5 Guide

GamesRadar

Nerdschalk

Common Sense Gamer