How to Fish Wiki
Official How to Fish screenshot of late-game equipment on a tropical island

How to Fish guide

Volcano Island

The final pink radar marker: Scientific Lure farming, the optional Goblin Shark and the Bowhead-to-mutated-whale ending chain.

Island 5Scientific LureUpdated 2026-08-24

Plan before you start

How this stage moves forward

Finish the local quest, defeat the required encounter and return the requested item so the next route can appear on the Radar.
Story stage
5 of 5
Radar marker
Pink Radar marker
Encounters
Mutated Bowhead Whale, Goblin Shark
Available weapons
1 at this stage
01

How to reach this island

Rocks: complete Terrorizing Bird and return the Albatross head.

  • Defeat Tuna and use its body to trigger Albatross.
  • Return the Albatross head to the Rocks Shop NPC.
  • Follow the pink Radar marker to the final island.
02

Story route

  • Use the Fish Bucket or Whale Bait for the Bowhead Whale step.
  • Keep the defeated Bowhead Whale for the mutated final encounter.
  • Finish the Mutated Bowhead Whale to complete the story.
  • The Handyman achievement requires a separate fists-only final-boss clear.
03

Collection and money

Scientific Lure costs $500 and reaches the five regular deep-sea species. The optional Scientific Boss Lure costs $5,800 and summons Goblin Shark, a commonly missed Collector target.

Required items and lures

Check each item and lure before starting the objective.

Weapons available at this stage

Shop and progression weapons associated with this island stage.

Related achievements

Achievements whose objective directly uses this route or encounter.

Previous stage

Return to the preceding island if the current Radar marker or quest chain is incomplete.