Islands unlock roughly every 10 levels from Beginning Isle outward. Each island gates specific weather, fish, and boss encounters — check the table before you spend on a new rod.
Default spawn. Bamboo through Enchanted Steel rods, Basic through Crude Mash belts. Reach level ~10 before moving on.
Windy weather unlocks Flying Fish Emperor and Empress plus Ascended Perch. Heavens Piercer craft component.
Foggy weather unlocks Heaven Piercer Turtle, the third sub-fish for Heaven Piercer Rod.
Snowy weather unlocks Frost King Fish and Reborn Puffer Beast. Gating island for Pure Diamond and Sacred Bamboo rods.
Blazing Sun weather unlocks Sanguine Fish and Draconic Koi. Pure Diamond Rod sub-fish source.
Default weather. Mountain Fish is the final sub-fish for Sacred Bamboo Rod.
Keep entries useful by separating source-backed facts, player-tested strategy, and update timing.
Keep rarity, obtain method, abilities, and summary tied to official posts or repeatable in-game testing.
Link islands entries to matching builds, boss routes, and guide sections.
Keep tier values and obtain methods current after each game update.