Islands are the route map for Sailor Piece. They decide where you level, which bosses you can reach, which NPCs unlock your next system, and when the game shifts from simple questing into Haki, dungeons, fragments, towers, and endgame specs.
sea
Early Islands
Early Islands cover the first route, the main utility hub, and systems that shape your account. Starter, Jungle, Desert, Dungeon, and Snow push progression forward; Sailor Island stays useful for its NPCs, Christmas is event-style content, and World Island is a late first-sea handoff.
Starter Island
- level
- 0
- sea
- Early Islands
- bosses
- No major boss
- main role
- Opening island
- key content
- Starter quests, first weapon pickup, tutorial route, hidden puzzle progress
- route use
- Begin here, learn the basics, then move toward Jungle and Desert.
Sailor Island
- level
- 0+
- sea
- Early Islands
- bosses
- Jinwoo, Alucard, Escanor (Boss Rush)
- main role
- Main utility hub
- key content
- Fruit Dealers, merchants, rerolls, ascension, Boss Rush, Jinwoo and Alucard routes
- route use
- Return here often because services and repeat routes stay useful past early game.
Jungle Island
- level
- 250+
- sea
- Early Islands
- bosses
- No major boss
- main role
- Early leveling bridge
- key content
- Jungle quests, early enemy farming, hidden collection spots
- route use
- Use it after starter routes before Desert and Snow open up.
Desert Island
- level
- 750+
- sea
- Early Islands
- bosses
- No major boss
- main role
- Observation Haki stop
- key content
- Observation Haki Master, desert quests, hidden puzzle piece
- route use
- Visit when you are ready to start Haki progress and push toward dungeon setup.
Dungeon Island
- level
- 1000+ (dungeon requires 5000+)
- sea
- Early Islands
- bosses
- Shadow, Shadow Monarch
- main role
- Dungeon gateway
- key content
- Dungeon Master, Shadow route, Shadow Monarch route, dungeon unlock chain
- route use
- Unlock the island early, then return at 5000+ when dungeon access matters.
Snow Island
- level
- 1500+
- sea
- Early Islands
- bosses
- No major boss
- main role
- Haki and upgrade island
- key content
- Armament Haki, artifacts, upgrade station, Skill Tree, Hogyoku Fragment progress
- route use
- Treat it as a major account-power stop, not just another leveling island.
Christmas Island
- level
- Any
- sea
- Early Islands
- bosses
- Ragna
- main role
- Seasonal event island
- key content
- Ragna boss, Christmas event rewards, limited seasonal drops
- route use
- Check it during event windows, even if your normal route is somewhere else.
World Island
- level
- 10000+
- sea
- Early Islands
- bosses
- No major boss
- main role
- Sea 2 handoff
- key content
- Sea Traveler, Ancient Fragments, Map Pieces, Cartographer handoff
- route use
- Use it late in the first sea when you are working toward the Sea 2 route.
sea
Mid Islands
Mid Islands are where simple leveling turns into targeted farming. Boss Island handles summons, Shibuya Station stacks bosses, Haki, trainers, and enchants, and Hollow Island moves players toward Aizen and fragment progress.
Boss Island
- level
- 1500+
- sea
- Mid Islands
- bosses
- Saber, Ichigo, Gilgamesh, Qin Shi, Blessed Maiden
- main role
- Boss summon hub
- key content
- Boss Summoner, Boss Exchange, boss keys, fighting-style and weapon routes
- route use
- Go here for summon routes and unlock materials instead of normal mob farming.
Shibuya Station
- level
- 3000+
- sea
- Mid Islands
- bosses
- Yuji, Gojo, Sukuna
- main role
- Trainer and enchant hub
- key content
- Yuji, Gojo, Sukuna, Conqueror Haki, accessory enchanting, puzzle and fragment progress
- route use
- Use it when boss drops, Haki progress, trainers, and enchants start overlapping.
Hollow Island
- level
- 5000+
- sea
- Mid Islands
- bosses
- Aizen
- main role
- Aizen and fragment route
- key content
- Aizen boss, specialized trainers, Hogyoku Fragment progress, late material farming
- route use
- Move here when the mid-game route turns into Aizen, fragments, and stronger unlocks.
sea
Endgame Islands
Endgame Islands connect to late bosses, advanced specs, titles, towers, and quest gates. Soul Dominion follows the Hogyoku Quest, while Judgement, Lawless, and Ninja Island support later boss and unlock routes.
Shinjuku Island
- level
- 6250+
- sea
- Endgame Islands
- bosses
- Strongest of Today, Strongest in History
- main role
- Late cursed combat route
- key content
- Strongest bosses, mastery progress, Hogyoku Fragment progress, dense enemy farming
- route use
- Use it as an early endgame combat and boss route before higher islands open.
Slime Island
- level
- 8000+
- sea
- Endgame Islands
- bosses
- Rimuru
- main role
- Skill Tree and Rimuru route
- key content
- Rimuru boss, Skill Tree NPC, Slime puzzle, Hogyoku Fragment progress
- route use
- Visit when stat scaling, puzzle progress, and the Rimuru route become useful.
Tower Island
- level
- 8500+
- sea
- Endgame Islands
- bosses
- No major boss
- main role
- Infinite Tower route
- key content
- Infinite Tower access and endgame progression activity
- route use
- Use it when you are ready for tower-style progression instead of island farming.
Soul Dominion
- level
- 8500+ (requires Hogyoku Quest)
- sea
- Endgame Islands
- bosses
- True Aizen
- main role
- Hogyoku quest gate
- key content
- True Aizen, Hogyoku Quest requirement, Transcendent Being title route
- route use
- Go here after the Hogyoku route is ready, not just because your level is high enough.
Academy Island
- level
- 9000+
- sea
- Endgame Islands
- bosses
- Anos
- main role
- High-level Anos route
- key content
- Anos boss, Anos fighting style NPC, high-level training facility
- route use
- Use it as a high-level boss and fighting-style stop after earlier endgame routes.
JoJo Island
- level
- 10000+
- sea
- Endgame Islands
- bosses
- The World
- main role
- The World route
- key content
- The World boss, The World melee spec, Time Tyrant title route
- route use
- Visit for the DIO-inspired route and Sea 2-style endgame progression.
Judgement Island
- level
- 10000+
- sea
- Endgame Islands
- bosses
- Yamato
- main role
- Yamato route
- key content
- Yamato boss, Yamato sword, Yamato fighting style materials, Hogyoku Fragment progress
- route use
- Use it when your endgame route needs Yamato drops or fighting-style materials.
Valentine Island
- level
- Endgame
- sea
- Endgame Islands
- bosses
- Madoka
- main role
- Endgame seasonal boss
- key content
- Madoka boss, Valentine event route, high-HP seasonal encounter
- route use
- Check it for event-linked endgame farming and Madoka boss progress.
Lawless Island
- level
- 12000+
- sea
- Endgame Islands
- bosses
- Atomic Boss
- main role
- Atomic route
- key content
- Atomic Boss, Atomic melee spec Seller, Arena Fighters, Abyss Sigils
- route use
- Use it when your build route points toward Atomic unlocks and Abyss Sigils.
Ninja Island
- level
- 12000+
- sea
- Endgame Islands
- bosses
- Strongest Shinobi (2B HP, respawns every 5m45s)
- main role
- Strongest Shinobi route
- key content
- Strongest Shinobi boss, Strongest Shinobi seller, Battlefield Warlord title
- route use
- Farm it for the late Shinobi route and title-gated unlock progress.
sea
Sea 2
Sea 2 begins at Starter Island Sea 2 and connects to later quests, bosses, raids, relics, and weapon routes.
Starter Island Sea 2
- level
- 12,750+
- sea
- Sea 2
- bosses
- No major boss listed
- main role
- First Sea 2 quest and mastery stop
- key content
- Blood Flower Quest, Mastery, Relic Parts from Delinquents and Strong Fighters
- route use
- Start here in Sea 2, then collect six flowers to unlock Isolation Island.
Isolation Island
- level
- Blood Flower Quest
- sea
- Sea 2
- bosses
- Black Reaper
- main role
- Black Reaper and Reaper Key route
- key content
- Black Reaper Summoner and mastery; Lv. 18,500 Ghoul Members drop Reaper Keys at 0.1%
- route use
- Complete the Blood Flower Quest from Starter Island Sea 2 to unlock the island.
Dante Island
- level
- Dante Questline 1 from Judgement Island
- sea
- Sea 2
- bosses
- Dante
- main role
- Dante questline and Toji Blade Piece route
- key content
- Dante Questline 1, Dante summon route, Toji Blade Piece
- route use
- Finish Dante Questline 1 on Judgement Island before using this route.
Bizarre Island
- level
- 13,500+
- sea
- Sea 2
- bosses
- The World
- main role
- Relic crafting and The World route
- key content
- Relic Crafter, Relic Parts, Dominion Brand, The World summon route
- route use
- Use the Relic Crafter for Sea 2 relics and follow the boss route for The World.
Punch Island
- level
- Quest 23 (Lv. 14,500+)
- sea
- Sea 2
- bosses
- Cosmic Being, Garou
- main role
- Quest 23 and Crystal Defense hub
- key content
- Cosmic Being world boss, Crystal Defense, Toji Blade Piece, Fast Ninja Relic Parts
- route use
- Progress through Quest 23 and use the island for Cosmic Being and Crystal Defense.
Blue Planet
- level
- Quest 24 (Lv. 16,000 to 18,000)
- sea
- Sea 2
- bosses
- Minotaur, Bearer of Light, Spirit Warrior
- main role
- Raid, Light V2, and Spirit Warrior route
- key content
- Minotaur Raid, Light Raid, Spirit Warrior boss, Light V2, Empyrean Training, Celestial Guide
- route use
- Use the raid routes and NPCs here to pursue Light V2 and Spirit Warrior progression.
Broly Island
- level
- Ungated; Spirit Fighter is Lv. 16,000
- sea
- Sea 2
- bosses
- Wrathful Beast (Broly) Raid
- main role
- Broly Raid hub
- key content
- Spirit Fighter farming, Wrathful Beast (Broly) Raid
- route use
- Farm Spirit Fighters for their level-gated drops, then enter the Broly Raid.
Slayer Island
- level
- Quest 25 (Lv. 18,000+)
- sea
- Sea 2
- bosses
- Sun God
- main role
- Sun God boss, Index, and Toji routes
- key content
- Index NPC, Sun God summon route, Soul Harvester, Toji NPC, Toji Blade Piece
- route use
- Complete the level-gated quest route to reach the Sun God and island unlocks.
Frost Island
- level
- Quest 27 (Lv. 20,000 to 21,250)
- sea
- Sea 2
- bosses
- Frost Empress, Rukia
- main role
- Quincy and Frost Empress route
- key content
- Quincy member NPCs, Frost Empress Training
- route use
- Progress through the level-gated quest route to reach the Frost Empress and Quincy NPCs.
Hero Kingdom
- level
- Lv. 21,250+
- sea
- Sea 2
- bosses
- King of Heroes V2
- main role
- Disciple quest and King of Heroes V2 route
- key content
- Disciple quest, King of Heroes V2 purchase and mastery, King of Heroes V2 boss
- route use
- Complete the Disciple quest and follow the King of Heroes V2 route.
Flying Ship
- level
- -
- sea
- Sea 2
- bosses
- Lightning
- main role
- Lightning V2 route and boss stop
- key content
- Lightning V2 seller and mastery, Lightning Boss with a 10-minute respawn
- route use
- Visit for the Lightning V2 route and the recurring Lightning boss.
Level tells you when to enter, but the island role tells you why to go
A level requirement is only the first filter. Starter Island and Jungle Island are normal early route stops, while Sailor Island stays useful because it has fruit dealers, rerolls, ascension, Boss Rush, and repeat boss routes. World Island is a route stop for the Sea Traveler and the Ancient Fragment and Map Piece handoff toward Sea 2.
| Route type | Islands to watch | Why it matters |
|---|---|---|
| Early leveling | Starter Island, Jungle Island, Desert Island, Snow Island | These islands move you through the first combat and quest path. |
| Utility hub | Sailor Island | This is where many service NPCs and repeat routes stack together. |
| Haki and upgrades | Desert Island, Snow Island, Shibuya Station | These stops matter because Haki, upgrades, enchants, and trainer routes start shaping your build. |
| Dungeon and fragment progress | Dungeon Island, Snow Island, Shibuya Station, Hollow Island, Soul Dominion | These islands connect to dungeon access, puzzle pieces, Hogyoku Fragments, and quest gates. |
| Boss farming | Boss Island, Shibuya Station, Hollow Island, Shinjuku Island, Lawless Island, Ninja Island | These are the islands you check when your next unlock depends on boss drops or summon routes. |
| Endgame unlocks | Tower Island, Soul Dominion, JoJo Island, Judgement Island, Lawless Island, Ninja Island | These islands are tied to late specs, titles, tower progress, and high-level boss chains. |
| Sea 2 routes | Starter Island Sea 2, Bizarre Island, Punch Island, Blue Planet, Slayer Island, Frost Island, Hero Kingdom, Flying Ship, Isolation Island, Dante Island, Broly Island | These stops cover Sea 2 quests, raids, relics, bosses, and later progression gates. |
Read bosses together with key content
A boss name tells you who you can fight, but the key content field tells you why that fight belongs to the route. Boss Island is a good example: the value is not one boss, it is the summoning system around boss keys, exchange routes, and weapon or fighting-style materials.
No-boss islands can still be important. Starter Island teaches the opening route, Desert Island points toward Observation Haki, Snow Island carries Armament Haki and upgrade systems, Tower Island is for Infinite Tower, and World Island is a transition stop toward Sea 2.
How Sea 2 progression opens
Starter Island Sea 2 is the first quest and mastery stop. Complete its Blood Flower Quest to open Isolation Island. Bizarre Island handles relic crafting, while Punch Island connects to Crystal Defense and Cosmic Being. Blue Planet adds raids, Light V2, and Spirit Warrior routes. Further Sea 2 stops lead to Broly, Sun God, Frost Empress, King of Heroes V2, Dante, and Lightning progression.
FAQ
How many islands are in Sailor Piece?
Sailor Piece has 32 islands: 8 in Early Islands, 3 in Mid Islands, 10 in Endgame Islands, and 11 Sea 2 islands.
Which Sailor Piece island should I visit first?
Start at Starter Island, then move through Jungle, Desert, Dungeon, and Snow as your level and unlock needs grow. Sailor Island is useful from the start because many utility NPCs are there. Sea 2 begins at Starter Island Sea 2 once you meet its level and travel requirements.
What does World Island unlock?
World Island is a transition stop for the Sea Traveler and the Ancient Fragment and Map Piece route toward Sea 2.
Which islands matter for Haki in Sailor Piece?
Desert Island is tied to Observation Haki, Snow Island is tied to Armament Haki, and Shibuya Station is tied to Conqueror Haki and other trainer routes.
Which islands have no major boss?
Starter Island, Jungle Island, Desert Island, Snow Island, World Island, and Tower Island have no major boss. They still matter for quests, Haki, upgrades, tower access, or route progression.
Where does dungeon progress start?
Dungeon Island is the main dungeon gateway. The island opens at level 1,000+, while the dungeon route requires level 5,000+.
How do you unlock Isolation Island?
Start the Blood Flower Quest on Starter Island Sea 2 and collect all six flowers. The quest unlocks Isolation Island.







