How many islands are there in How to Fish?
The campaign is commonly described as five islands. Current guides use the names Lighthouse, Forest, Desert, Rocks and Volcano, with the final stage also described through its military and scientist route. The route follows quests and bosses; all five locations are not open immediately.
The Radar helps you follow coordinates after a route is granted. It does not unlock the next island by itself. When a destination remains absent, check the current boss trophy or body hand-in before buying another navigation tool.
All five islands in unlock order
| Stage | Main gate | Boss or trigger | Result to preserve |
|---|---|---|---|
| 1 · Lighthouse | Keeper’s opening request | Empty Beer Can → Spider Crab | Spider Crab quest result for boat keys; Radar is sold for $10 |
| 2 · Forest | 3/3 Leeches | Modified Leech → Giant Piranha | Giant Piranha Skeleton for Island 3 coordinates |
| 3 · Desert | Tourist’s creature request | Carrot → Pufferfish | Pufferfish trophy/fin for Island 4 |
| 4 · Rocks | Professional Boss Lure → Tuna | Place Tuna → Albatross | Albatross Head for the next route |
| 5 · Military / Volcano | Scientist sequence and Fish Bucket | Bowhead Whale body → volcano | Mutated Bowhead Whale final objective |
The island labels above match current guide usage. Follow the exact objective and inventory label in your build if a patch changes the public wording.
Can't see the second island?
The Forest Island does not need to be visible from the Lighthouse shoreline before the opening route is complete. The normal sequence is Spider Crab → boss hand-in → boat keys → $10 Radar → equip the Radar → northwest green marker.
- Finish the Beer Can route. Give the Beer Can to the Lighthouse Keeper, use the returned Empty Beer Can to summon Spider Crab and defeat it.
- Carry the boss quest result back. Current walkthroughs identify the required hand-in as Spider Crab meat. Do not sell or cook the distinctive result before talking to the Keeper.
- Confirm that the boat is drivable. The Keeper gives the boat keys after the opening hand-in. A visible boat without usable keys does not mean the route is finished.
- Buy the handheld Radar for $10. It is a separate purchase from the boat keys.
- Put the Radar in your hands. The early version is not yet mounted on the boat. A green dot should appear northwest of the Lighthouse.
- Steer toward the marker. Follow the dot until the Forest Island renders, then approach the shore.
| What is missing | Likely gate to check | Next action |
|---|---|---|
| No boat keys | Spider Crab result was not accepted | Return to the Lighthouse Keeper with the quest result |
| Boat works, but no Radar | The navigation item is a separate $10 purchase | Check the Keeper's shop before sailing |
| Radar owned, but no marker | The item is not held or the hand-in state did not advance | Equip it, reread the objective and speak to the Keeper once |
| Marker appears, island is not visible | You may still be approaching; a destination that remains absent needs a separate check | Follow the marker; if you have already reached it, use the coordinates-without-island checks |
| Radar disappeared after reload | Tool-loss/save symptom | Use the Missing Radar guide before saving more changes |
Do not label every missing Island 2 view as a Radar bug. A missed trophy hand-in, absent boat keys, unpurchased Radar, unequipped handheld item and actual missing-tool state are five different blockers.
Reached the island coordinates, but no island is visible?
First separate coordinates not unlocked from a destination already shown on Radar that remains invisible on arrival. For the first state, check the required boss hand-in and equipped Radar. Repeating the hand-in is not an established fix for the second state.
A September 9 Steam Community post asks why no island is visible after reaching its coordinates. The author does not name the island, provide a screenshot, or identify solo versus multiplayer. No reply establishes a cause or fix, so it cannot be assumed to be a render-distance, Radar or corrupted-save problem.
If you have already reached the marker, record the Radar view, current quest, destination and game version. In co-op, compare the host’s view with the guests’ views before leaving the session. Keep a backup using the save guide before testing a reload; avoid editing progression flags or replacing your only campaign. If the Radar itself is gone, follow missing Radar recovery instead.
The boss hand-in rule
Most early and mid-game routes use the same rhythm: activate the NPC request, obtain the trigger, defeat the boss, collect the distinctive result and return it. Killing the creature is only half of the unlock. Selling or cooking the required result can leave the Radar unchanged even though the fight is complete.
- Spider Crab: return the opening boss result to the Lighthouse Keeper before expecting the boat route.
- Giant Piranha: keep the Giant Piranha Skeleton and return it to the Island 2 quest giver.
- Pufferfish: preserve the distinct trophy/fin rather than ordinary meat.
- Albatross: keep the Albatross Head, also described as the bird head.
- Bowhead Whale: do not use an NPC hand-in; carry the normal whale body to the volcano as the final boss trigger.
Island 2 and Island 3 blockers
Island 2: 3 Leeches and Giant Piranha
Collect three ground pickups near the lady by the lake. The correct objective is 3/3, not five. She returns a Modified Leech that summons the Giant Piranha. During the boss fight, clear only the small piranhas that block movement and keep damage on the boss before its escape bar expires. Return the skeleton for the next coordinates.
Island 3: Blue Shark, Grill and Pufferfish
The Blue Shark is an optional-but-useful Island 3 system gate: use the Standard Boss Lure, defeat the shark and bring it to the Grill Master to start the Grill. Story progression uses the Tourist request and Carrot trigger for Pufferfish. Current boss evidence links a Needlefish hand-in to the Carrot. After the fight, keep the distinct Pufferfish trophy for the next route.
Island 4 and the volcano route
Island 4: Tuna into Albatross
Use the Professional Boss Lure to catch Tuna, defeat it and preserve the body. Place the Tuna on the ground to summon Albatross—the official achievement calls it the terrorizing bird. Keep the Albatross Head after the fight and complete the hand-in that opens the late route.
Island 5: Bowhead Whale into Mutated Bowhead Whale
Complete the scientist’s sequence to obtain the Fish Bucket, use it for the normal Bowhead Whale and keep that body. Carry the whale to the volcano and throw it in to summon the Mutated Bowhead Whale, also called the Magma or Lava Whale. Fight inside the volcano region; pulling the boss too far into open water can reset the encounter.
Boat missing after loading a save
A missing boat is not the same as a locked island. Current reports include a boat disappearing immediately after the 1.0.10 update and a solo player loading inside the Island 4 casino after a failed whale attempt with equipment intact but no boat.
| What you see | State to check | Next page |
|---|---|---|
| Boat model is absent | Record the spawn island, last boat location and game version | Missing-boat save steps |
| Boat exists but cannot be driven | Check whether the correct player has keys and owns the session | Continue the quest and host-state checks below |
| Boat works but no destination marker appears | Check the boss hand-in and held Radar | Missing Radar guide |
| Only a joining player cannot see or use the boat | Have the original host describe the loaded world | Multiplayer troubleshooting |
Patch 1.0.10 adds persistence for up to 64 dropped ground items, but it does not describe the boat as an item in that system and does not publish a boat-respawn control. Preserve the save folder before another load, do not swim between islands and do not edit the only copy.
If the next island does not unlock
- Read the active objective again. Confirm whether it asks for a pickup, bait, creature body, trophy or NPC interaction.
- Return to the current quest giver. Carry the distinctive boss result and try the hand-in before repeating the fight.
- Separate meat from trophies. Generic sellable pieces may not satisfy the campaign request.
- Check the co-op holder. The player carrying the item should be present for the hand-in.
- Then check the Radar. If the hand-in succeeded but the tool disappeared, use the Missing Radar guide.
- Save through the game menu. Patch 1.0.6 defines Save, Main Menu and Quit as write points.
Sources used on this page
- How to Fish on Steam Dazed Games / Valve · accessed 2026-09-01 · identity, release, features, platforms, system requirements, store feature list, screenshots, gameplay clips
- How to Fish community discussions Steam Community · accessed 2026-09-05 · current player questions, Patch 1.0.12 Steam Cloud status questions, post-1.0.12 Piranha difficulty reports, inverted-audio report, Patch 1.0.11 Spider Crab flying reports and hotfix claim, Pufferfish kill without head or coordinates, Patch 1.0.10 uncook demand, boat missing after loading, Spider Crab Reel duplicates, Drip Voxelfish completion blockers, Bing Bong and Coconut, shared multiplayer money, boss escape questions, Bean speedrun demand, competitive speedrun demand, save loading failures, post-1.0.10 missing-item reports, weapon storage questions, unconfirmed Sniper Rifle nerf question, invite failures, high GPU and FPS-cap reports, mouse-movement stutter, fish not biting, audio duplication and distortion, Unity 6000.4.4f1 launch crashes, 0x11C7 launch-block reports, boat items after reload, missing equipment reports, weapon skin questions, second-island questions, lost Radar reports, drip creature questions, cooked fishing rod reports, boss difficulty, multiplayer issues
- How to Fish official announcements Dazed Games / Steam Community · accessed 2026-09-08 · current official feed through Patch 1.0.12, Patch 1.0.12 Steam Cloud, Patch 1.0.12 Piranha and Tuna balance, Patch 1.0.12 item velocity, MetaVoice, lobby FPS cap, Radio and final-boss fixes, Patch 1.0.11 Steam Deck Verified and GeForce NOW, Patch 1.0.11 save corruption checks and backups, Patch 1.0.11 controls, explosives, attachments and fixes, Patch 1.0.10 cooked gear cleaning, Patch 1.0.10 ground-item persistence, Patch 1.0.10 Anglerfish, roulette, connection, Radar and item-position changes, Patch 1.0.9 difficulty settings, Patch 1.0.9 Steam relay debug, Patch 1.0.9 attempted save fix, Patch 1.0.8, Patch 1.0.6 save behavior, Patch 1.0.5 lobby options, Patch 1.0.5 4K slot-machine skin fix, Patch 1.0.4 multiplayer fixes
- FANART & PATCH 1.0.10 — official How to Fish announcement Dazed Games / Steam Community · accessed 2026-09-01 · Patch 1.0.10, water cleans cooked weapons and tools, 64 saved ground items and priority order, Anglerfish nerf, roulette fixes, connection timeout increase, Radar X removal, attempted item-position fixes
- How to Fish: How to Defeat All Bosses AllThings.How · accessed 2026-08-24 · Spider Crab, Giant Piranha, Albatross, Bowhead Whale, boss bait and hand-ins
- How to Fish: Full Island and Boss Progression Walkthrough AllThings.How · accessed 2026-08-24 · five-island route, three-leech objective, boss trophy hand-ins, Radar purchase
- How to Complete the Forest Island in How to Fish Mobalytics Gamebase · accessed 2026-08-25 · Spider Crab hand-in, boat keys, Radar purchase, northwest green marker, Forest Island route
- Boat missing after the update — How to Fish discussion Steam Community · accessed 2026-08-28 · boat missing after loading Patch 1.0.10, world-state report
- Trapped on 4th island with no boat after loading save Steam Community · accessed 2026-08-28 · Island 4 casino spawn, missing boat after whale attempt, equipment preserved, no published recovery in thread