Immediate route answer
Unlock, objective, exit
Unlock: Return Pufferfish's fin and follow the red Radar marker.
Main objective: defeat Albatross. Complete Albatross's route result and hand it in to reveal Volcano Island.
Stage 4 of 5 · How to Fish Steam
How to Fish game: Rocks Island guide
The red-marker island raises prices sharply and links a Professional Boss Lure, a defeated Tuna and an aerial boss into one route.
Last verified August 28, 2026
Use this page as a stage checklist. Finish the numbered route before spending on optional boss lures, then use the local tables for Fishipedia and side-route cleanup.
How to unlock Rocks Island
Return Pufferfish's fin and follow the red Radar marker.
If the marker is missing, return to Desert Islandand verify its named boss result was handed to the correct quest giver.
Rocks Island walkthrough
- Farm the Professional pool and finish any weapon purchases before spending on the boss lure.
- Buy the $1,200 Professional Boss Lure, land Tuna and defeat it.
- Keep the Tuna body intact and place it on open ground to attract Albatross.
- Defeat Albatross, collect its head and return it to the frightened islander for Volcano coordinates.
Stage tips
- Never cook, sell or gamble the Tuna needed for the story trigger.
- A precision firearm makes the flying Albatross safer than chasing it with short-range damage.
- Treat roulette and slot machines as optional cleanup; they can consume route money quickly.
Rocks Island creatures
This stage has 12 local directory entries in the Patch 1.0.10 snapshot. Quest bodies and boss results can be worth coins while still being required for progression.
| Creature | Type | Rod / bait | Base value |
|---|---|---|---|
| Parrotfish | Fish | Fishing Rod Professional Lure | 350 coins |
| Voxelfish | Fish | Fishing Rod Professional Lure | 340 coins |
| Bass | Fish | Fishing Rod Professional Lure | 250 coins |
| Halibut | Fish | Fishing Rod Professional Lure | 290 coins |
| Eel | Fish | Fishing Rod Professional Lure | 280 coins |
| Tigerfish | Fish | Fishing Rod Professional Lure | 310 coins |
| Flying Fish | Fish | Fishing Rod Professional Lure | 320 coins |
| Sengarat | Fish | Fishing Rod Professional Lure | 280 coins |
| Red Snapper | Fish | Fishing Rod Professional Lure | 280 coins |
| Dripper | Fish | Fishing Rod Professional Lure | Value unverified |
| TunaBoss | Fish | Fishing Rod Professional Boss Lure (dedicated encounter; also reported in the Professional Lure pool) | 2,000 coins |
| AlbatrossBoss | Special | None Defeated Tuna | 13,000 coins |
Rocks Island bosses
Story route
Tuna
Tuna is both a dangerous catch and a quest object; selling its valuable body stops the story chain.
- Trigger
- 1,200-coin Professional Boss Lure (dedicated story encounter)
- Result
- The defeated Tuna body, which is the Albatross trigger.
Story route
Albatross
A flying story boss that rewards clean sightlines and disciplined aim more than close-range damage.
- Trigger
- Defeated Tuna placed on the ground
- Result
- Albatross head; return it for Volcano Island coordinates.