How to Get Through the Fish Island: Boat Travel & 5-Island Navigation
Master the open ocean in How to Fish. Discover how to get your legitimate boat keys for free, avoid the notorious $500 dock merchant scam, harness the $10 handheld navigation radar, navigate dense storm fog without engine overheating, and troubleshoot missing or glitched boats across all five islands.
How Do You Get Through the Fish Island in How to Fish?
Players getting stuck when trying to travel through to the Fish Island (navigating between Islands 1 through 5 in the archipelago) encounter engine stalling, dense fog, or impassable storm barriers. Follow these 3 critical rules to navigate through cleanly:
Lock Engine at 70%–75%
Never hold 100% full throttle for more than 45 seconds. Keep your engine in the green 70%–75% RPM band to prevent the outboard motor from smoking and stalling out mid-ocean.
Follow $10 Radar, Not Compass
Thick sea fog between Island 2 and Island 3 causes the dashboard compass needle to spin wildly. Equip the $10 Handheld Navigation Radar from the Lighthouse Keeper to get direct degree headings.
Deliver Key Progression Trophies
To clear storm barriers, deliver the Spider Crab Shell to Captain Barnaby, Pike Sawjaw to Sven, and Inflated Poison Sac to Tariq. Do NOT sell boss trophies to vendors!
How to Get the Boat Keys & The $500 Dock Scam Warning
When arriving at the Island 1 (Lighthouse Beach) marina, you will encounter two vastly different methods of acquiring the wooden motorboat. One is the intended progression questline; the other is an infamous community-reported money sink trap.
The Legitimate Captain Barnaby Questline ($0)
- Buy a Beer Can ($12): Purchase a cold beer from the shelf at the Lighthouse general store.
- Drink with Old Pete: Speak to Old Pete sitting on the wooden pier bench and finish the beverage to obtain the Empty Beer Can.
- Summon the Spider Crab: Rig the Empty Beer Can as bait onto your Crab Fishing Rod and cast underneath the pier pilings to trigger the Island 1 Boss battle.
- Defeat & Collect Shell: Slay the Spider Crab (650 HP) and pick up the dropped Spider Crab Shell.
- Deliver to Captain Barnaby: Bring the shell up to Lighthouse Keeper Captain Barnaby. He uses the chitin to patch the hull breach and hands over the Boat Keys for 100% FREE!
The $500 "Boat Keys" Dock Merchant Scam
A shady dock peddler standing near the dry-docked boat offers to sell "Boat Keys" for a whopping $500.
Why this is a catastrophic waste:
- Drains your entire early-game wallet when you need funds for the Pull Back Rod ($250) and SMG ($450).
- Purchasing the key does NOT repair the boat's fractured hull!
- You are still required to summon and defeat the Spider Crab to supply Captain Barnaby with the shell.
The $10 Handheld Navigation Radar & Co-op Division of Labor
Unlike traditional open-world games with permanent minimaps, How to Fish utilizes an active physical instrument system. Understanding how the radar operates and sharing cockpit responsibilities is vital for cross-island voyages.
Available at the Lighthouse shop for just $10. Buy it immediately on Day 1 before investing in firearms or premium tackle.
The radar must be held in your Active Hand Slot to illuminate the HUD compass bearing degrees (0°–360°) and distance in meters. It provides zero tracking while stored in your backpack.
Pushing the throttle lever to 100% overheats the motor, blowing black smoke and disabling propulsion (community-reported). Cruise within the green 70%–75% safe RPM band.
Because holding the radar occupies both hands (preventing you from steering or aiming weapons), solo sailors must alternate between looking at the device and taking the helm. In multiplayer lobbies, assign distinct responsibilities:
- Takes the stern steering helm and operates the throttle lever.
- Monitors engine temperature needle to lock speed at 70%–75% RPM.
- Executes course corrections based on Navigator callouts.
- Prepares a backup fuel canister in case of extended oceanic drift.
- Stands at the bow holding the $10 Handheld Navigation Radar.
- Broadcasts real-time bearings: "Course 210° South-Southwest, 450m out!"
- Scans the waters ahead for rogue sharks, reef rocks, and floating barrels.
- Carries a shotgun or rifle to defend the vessel during apex sea breaches.
Need more multiplayer strategies? Check our comprehensive Co-op Multiplayer & Shared Treasury Guide or see our Lost Radar Recovery Guide.
5-Island Progression Chain & Mandatory Trophy Hand-ins
Island hopping in How to Fish is strictly gated by story boss triumphs and key NPC hand-ins. Skipping islands via speedrun motorboat glitched jumps was patched out in update 1.0.5 ("sorry speedrunners"). Follow the official sequence below:
| Island Destination | Key Prerequisite Boss | Mandatory Trophy Hand-in | Receiving NPC | Route Unlocked |
|---|---|---|---|---|
Island 1: Lighthouse Beach Starting Island | Spider Crab | Spider Crab Shell | Captain Barnaby (Lighthouse Keeper) | Repairs the wooden boat for 100% free and awards authentic Boat Keys. Unlocks open ocean sailing to Forest Island. |
Island 2: Sunken Sawmill (Forest) Story Fork / Dual Source | Dual Attribution: The Old Pike / Giant Piranha | Pike Sawjaw / Giant Piranha Skeleton | Lumberjack Sven / Fishergirl NPC | In-site progression requires delivering the Pike Sawjaw from The Old Pike to Lumberjack Sven to build timber tracks. Media guides (IGN, Mobalytics) report handing the Giant Piranha Skeleton to the Fishergirl NPC to receive Island 3 coordinates. |
Island 3: Sunbaked Atoll (Desert) Midgame Hub | Colossal Spiny Pufferfish | Inflated Poison Sac | Desert Alchemist Tariq | Delivering the Inflated Poison Sac brews heat and venom-resistant draughts, granting passage and unlocking the route to Rocks Island. |
Island 4: Foggy Cliffs (Rocks) Late Game | Apex Albatross | Albatross Crown Feather | Chief Geologist Douglas | Douglas weaves the Albatross Crown Feather into a Heat-Shielding Mantle, enabling safe entry into the boiling Volcano Caldera. |
Island 5: Abyssal Caldera (Volcano) Final Destination | Mutated Bowhead Whale | Defeated Leviathan Carcass | The Volcano Lava Pit | Use the Pull Back Rod to fling the 0% HP whale carcass directly into the central boiling volcano pit. Triggers the victory end credits roll. |
There is an active divergence between third-party editorial guides and in-site gameplay documentation regarding Island 2 (Forest / Sunken Sawmill):
Describe the Giant Piranha as the primary Island 2 story boss. Players harvest ground leeches (reported count varies: 3 per IGN/Game8; 5 per in-site data), craft Modified Leech bait with the Fishergirl NPC, defeat the boss, and turn in the Giant Piranha Skeleton to calculate Island 3 coordinates.
Lists The Old Pike as the official story boss (hooked with Stinky Cheese in the sawmill whirlpool), whose Pike Sawjaw is delivered to Lumberjack Sven to rebuild heavy timber tracks to Island 3, categorizing Giant Piranha as an encounterable regional challenge.
* Source note: Sourced from official patch notes and independent community gameplay audits. Pending explicit single-source developer confirmation from Dazed Games, players are advised to retain both the Pike Sawjaw and Giant Piranha Skeleton. See our complete 5-Island Progression Roadmap for full quest walkthroughs.
Boat Missing, Lost or Desynced Troubleshooting Manual
One of the most frequent support tickets in the Steam community (app 4001890) involves missing boats after deaths, unexpected crashes, or multiplayer lag desyncs. Below are tested recovery steps gathered from active community verification:
Wooden Boat Vanished After Game Reload or Crash
Exiting mid-transit in deep water causes player position to save while the boat's floating physics coordinate desynchronizes from the ocean grid.
Return to Shore Anchor: Walk along the shoreline of your current island toward the primary wooden pier or nearest tidal sandbar. The physics engine automatically snaps and resets the vessel to the nearest designated shoreline mooring point.
Spawned at Campfire After Dying — Boat Nowhere to be Found
Drowning or dying to sea creatures far out at sea respawns players at the island base camp, leaving the vessel adrift where you perished.
Check Island Starter Dock or Track with Radar: Check the island's main wooden jetty first. If adrift at sea, equip your $10 Handheld Navigation Radar to scan for the distinctive white boat anchor HUD waypoint marker.
Multiplayer Boat Desync: Ship Submerged or Flying
High latency spikes or host migration while sailing causes client physics to extrapolate the boat into the stratosphere or sea floor.
Full Squad Lobby Reconnect: Have the host save, exit to main menu, and re-host the lobby. When all squad members reconnect via room invite code, the boat reliably resets to the host's island shoreline dock.
Dynamite Knockback Blasted the Boat Away
Tossing dynamite at leaping flying fish or sharks near the hull causes physics shockwaves that launch the boat thousands of meters into unreachable ocean bounds.
Intentional Drown Reset: Jump into deep water and drown to trigger a campfire respawn cycle. On respawn, the game's cleanup routine pulls out-of-bounds player vehicles back to the home dock anchor.
Boat Physically Stuck: How to Get Unstuck
The troubleshooting manual in Section 4 above addresses vessels that are missing, lost, or desynced across multiplayer sessions; this section deals specifically with situations where your boat is physically wedged or stuck on terrain, sandbars, or shallow reef rocks. The two issues require different recovery approaches and are not interchangeable.
Step-by-Step Procedure for Wedged Hulls (Recommended Order)
If your vessel is physically wedged against rigid collision geometry, work through the following steps in order:
- Release the throttle immediately: Let go of forward or reverse input and stop pushing in the stuck direction. Holding throttle toward the obstruction keeps applying force along the same collision edge, so releasing it is the least invasive first move.
- Walk back to the shore anchor point if near land: If grounded near a shoreline or marina dock, disembark on foot and walk back toward the shore mooring anchor point, which is the recovery path already documented in the manual above.
- Save and reload via “Continue” from the main menu: Let the game write your latest save, exit to the main menu, and select Continue (load last save). Reloading the last save is the most direct way to rebuild your world state from disk; we have not measured which step succeeds most often for stuck hulls.
- Exit to the main menu and restart the session if still stuck: If reloading via Continue does not free the vessel, exit to the main menu and re-enter the world. In single-player this reloads the world from your save. In co-op the session belongs to the host, so the host should do the reload and clients should rejoin afterwards; we have not verified this order specifically for stuck hulls.
- Back up your save before any drastic step: If every reload attempt leaves the hull trapped, copy your save folder to a safe location before considering anything drastic such as restarting the world.
We have not been able to verify these steps in-game for every stuck geometry; they follow the save and reload order already documented in the manual above. Treat them as a recommended sequence based on that documentation, not as an official unstick feature.
We have not found any official “unstick” key, reset button, or teleport command, and no patch note through Patch 1.1.3 describes one. If such a feature exists we have not been able to document it, so this page does not promise that one exists.
Frequently Asked Questions: Boat Travel & Getting Through the Fish Island
How do you get through the fish island in How to Fish?
To get through the fish island archipelago in How to Fish: 1. Maintain outboard motor throttle strictly between 70%–75% RPM to prevent engine smoking and stalling mid-ocean; 2. Equip the $10 Handheld Navigation Radar from Old Pete to navigate through dense sea fog when the dashboard compass spins erratically; 3. Deliver required boss trophies (Spider Crab Shell, Pike Sawjaw, and Inflated Poison Sac) to unlock sequential island barrier storms.
How do you get authentic boat keys without paying $500?
Do NOT buy the $500 Boat Keys from the dockside peddler—it is an intentional in-game scam! Instead, buy a $12 Beer Can from the Lighthouse shop, drink it with Old Pete, use the empty beer can as bait to hook and defeat the Spider Crab boss, and bring the Spider Crab Shell to Captain Barnaby for 100% free authentic Boat Keys.
How do you prevent boat engine overheating while sailing?
Cruise strictly in the green 70% to 75% throttle RPM zone. Holding 100% full throttle for more than 45 seconds causes engine overheating, thick black smoke, and engine stalling mid-ocean, leaving you stranded in predator-infested waters.
What should you do if your boat vanishes or desyncs?
If your wooden boat vanishes after dying or reloading, return to the nearest island pier or shoreline anchor point where the physics engine will automatically snap the vessel to the mooring. If it is adrift at sea, equip your $10 Handheld Navigation Radar to locate its anchor waypoint marker.