Forest Island Guide: Leeches, Guns & the Giant Piranha

Forest Island guide: the five-leech quest and special bait, where guns unlock, the girl's big yummy fish, and the Giant Piranha fight.

Last Updated: 2026-08-25

Forest Island: The Complete Second-Island Guide

The Forest is How to Fish's second island, and it is where the game stops being a tutorial. New shops, new NPCs with real quest chains, the first guns in the game, leeches that latch onto you in the undergrowth — and a Giant Piranha waiting at the end of it all. This island converts your Lighthouse survival habits into an actual economy.

New Shop, New Arsenal

A cabin deep in the forest island's pine woods
A cabin deep in the forest island's pine woods

The headline change: guns unlock here. Per TposeGaming's gun guide, Island 1 has no firearms at all — everything before this point dies to fists and sharpened knives.

Gun Price Base Damage
Pistol $50 25 per shot
Shotgun $150 3 per pellet

Buy order for most players: shotgun first, ammo second, pistol never. The shotgun carries the Giant Piranha fight and most Forest wildlife; per Destructoid's items guide, it remains useful well into the mid-game despite its ceiling. Its first damage upgrades are cheap, too — pellet damage climbs 3→4→5→6 for just $20/$30/$40.

The Quest Chains: Girl, Dad and Leeches

The Forest's NPC work pays in bait and progression:

  • The girl wants a "big yummy fish" for her dad but is not allowed to use guns — deliver a quality catch through pure fishing skill
  • Collect the five leeches. These are not fish: they are small ground pickups crawling along the island's paths. Gather all five and she converts them into special bait

That special bait upgrades your fishing immediately, and the errand pattern matters just as much: How to Fish hides its boss triggers behind exactly these kinds of chains. Finish local requests before hunting summons.

Leeches are easy to miss because players scan water for them. Walk the paths and look down — they crawl on land.

Leeches are easy to miss because players scan water for them. Walk the paths and look down — they crawl on land.

What You Will Catch

The Forest's waters upgrade meaningfully over the Lighthouse shallows. With the better rod tiers and beginner lures you will start pulling pikes, salmon, sunfish and similar mid-tier species — base sale values of $12 (pike), $14 (salmon) and $50 (sunfish) before weight rolls and cooking, each worth meaningfully more than clam-era catches, especially once trick-shot kills start applying their value multipliers.

This is also the right island to build two habits that pay for the rest of the run:

  1. Trick-shot finishing on every kill you can manage — multipliers stack on sale value
  2. Selling ordinary catches freely while hoarding anything uniquely named — the piranha trophy discipline starts here

The Blue Shark Encounter

Between the Forest's regular content and the main boss route sits a Blue Shark fight — a 2,300 HP swimmer with a 36-damage contact hit that jumps and thrashes hard. Per TposeGaming's breakdown, it punishes standing still and rewards using trees or the boat as cover; an SMG or upgraded shotgun shreds it, and its cooked meat with trick-shot multipliers makes the fight genuinely profitable.

Treat it as a mid-tier exam for your new arsenal before the real boss check.

The Giant Piranha: The Island's Gatekeeper

The Forest's boss is the Giant Piranha, summoned through the local quest chain. The short version:

  • Shotgun mandatory — the piranha is a 2,500 HP biter whose contact hits deal 32; melee range gets you bitten, wide pellet spread catches its approach passes
  • Distance discipline — let it commit, unload on approach windows, reposition
  • Watch the white escape bar — slow fights lose here
  • Keep the named drop — handing it in unlocks the Island 3 coordinates

Our full Giant Piranha guide covers the fight step by step, including the drop-handling mistakes that freeze runs.

After the kill, do not cook or eat anything with a proper-noun name. The piranha's drop is your ticket to the Desert; trophies are quest items until an NPC says otherwise.

After the kill, do not cook or eat anything with a proper-noun name. The piranha's drop is your ticket to the Desert; trophies are quest items until an NPC says otherwise.

Leaving Checklist

Before sailing to the tropical chaos of Island 3:

  • Giant Piranha killed, trophy handed in, coordinates received
  • Radar equipped (coordinates are dead weight without it)
  • Ammo restocked
  • Eye on the SMG ($650) — it arrives at the next island's shop
  • Special bait used or stockpiled

Money Benchmarks for the Forest

The Forest is where runs either fund themselves or fall behind. Healthy checkpoints:

Checkpoint Target
On arrival $150+ saved (shotgun money)
Shotgun plus ammo bought wallet near empty, income rising
Before Giant Piranha $200 buffer for lures and food
After trophy hand-in saving toward $650 SMG

Falling short usually traces to three leaks: pistol purchases, uncooked sells (once grill access exists), and ignored trick-shot multipliers. All three fix themselves with attention.

Wildlife Notes

Beyond quest fish, the Forest's waters stock pike, salmon and sunfish — steady sellers that fund the shotgun cycle. Leeches aside, the land threats are mild; most Forest danger is environmental greed: fighting too close to the waterline during the piranha chain, or wandering into boss territory before the leech errand is done.

The island rewards one more habit worth carrying forward: checking NPC dialogue after every major kill. Hand-in targets rarely announce themselves loudly, and the difference between a smooth unlock and a confused hour is often one conversation.

Special Bait: Using Your Leech Reward

The girl's leech conversion produces special bait with better hook rates on the island's mid-tier species. Resist the temptation to burn it all immediately on convenient catches — pair it with the better rod tiers and point it at pike and salmon specifically, where the value-per-cast advantage compounds fastest.

One bait discipline rule carries through the whole game: match bait tier to target value. Premium bait spent on shallow-water minnows is a quiet loss, while standard bait on big-body species wastes casts. The Forest is small enough to learn the matching cheaply, and the Desert's boss-tier lures will assume you already have.

FAQ

An NPC trade deep in the forest interior
An NPC trade deep in the forest interior

Where are the five leeches?

On the ground around the island's paths — small crawly pickups, not aquatic catches. Collect all five and hand them to the girl for special bait.

Do I need both the pistol and shotgun?

No. The pistol costs a third of the shotgun and hits far softer; nearly every guide recommends skipping it entirely and saving toward $150.

What unlocks Island 3?

Handing in the Giant Piranha's named trophy through the quest chain produces the Island 3 coordinates. Sold the drop? You are re-summoning the boss.

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