Rare
Sea 1
Sea 1 Island

Underwater City

A breathtaking submerged aquatic metropolis protected beneath an enormous air bubble dome. Governed by the Fishman Lord and sanctuary of Water Kung Fu.

Sea RealmSea 1 Island
Level BracketLevel 375 - 450
Territory BossFishman Lord
Zone SafetyQuests & PvP Active

Island Strategic Dossier

Sea 1 Tactical Zone

Leveling route, mob density, quest rewards & secret landmarks for Underwater City

Level BracketLevel 375 - 450
Zone SafetyQuests & PvP Active

A breathtaking submerged aquatic metropolis protected beneath an enormous air bubble dome. Governed by the Fishman Lord and sanctuary of Water Kung Fu.

Resident NPCs & Services
Water TeacherTeaches Water Kung Fu ($750,000 Beli)
Docks & Spawn Points:Active
Boss Spawns & Threat Intel
Fishman LordLv. 425
Drops:Trident sword (10% drop chance)
Respawn Timer: 15 minutes
Server Boss Alarm:Tracking Active
Secrets, Puzzles & Landmarks
Ocean vortex whirlpool located between Frozen Village and Marine Fortress transports players beneath the waves
Hidden illusion wall behind the Fishman Lord throne leads into the secret Water Teacher sanctuary
Sunken submarine wreckage with multiple gold chests
Hidden Quests:Documented

Enemy Mobs & Quest Progression

2 Mob Variants
Enemy MobRequired LevelQuest RewardsFarming Tip
Fishman Warrior
Lv. 375$8,500 Beli • 380,000 EXPGather with Buddha/Blizzard for rapid multi-target clear.
Fishman Commando
Lv. 400$8,750 Beli • 440,000 EXPGather with Buddha/Blizzard for rapid multi-target clear.

Passives & Intrinsic Mechanics

1 Intrinsic Traits Active

Island Tactical Intel

Recommended level bracket 375 - 450. Contains 2 mob types, 1 territory bosses, and 3 secret landmarks.

Obtainment & In-Game Spawns

Sail to Sea 1. Recommended Level Bracket: 375 - 450.

Sea RequiredSea 1
Boss SourceFishman Lord
Requirements
Sea 1
Level 375 - 450

Tactical Strengths & Weaknesses

Strengths (Pros)
Ocean vortex whirlpool located between Frozen Village and Marine Fortress transports players beneath the waves
Hidden illusion wall behind the Fishman Lord throne leads into the secret Water Teacher sanctuary
Weaknesses (Cons)
Requires Sea 1 navigation & Level 375 - 450

Related locations

Rare
Sea 1 Island

Pirate Starter Island

The sun-drenched coastal haven where aspiring pirate captains begin their voyage across the First Sea. Features beginner sparring grounds, basic boat docks, and starter sword vendors.

Sea RealmSea 1 Island
Level BracketLevel 1 - 10
Rare
Sea 1 Island

Marine Starter Island

The fortified naval outpost welcoming newly enlisted Marine recruits. Positioned within defensive stone ramparts with early firearm specialists and naval vessel dispatchers.

Sea RealmSea 1 Island
Level BracketLevel 1 - 10
Rare
Sea 1 Island

Middle Town

The bustling central crossroads of the First Sea where traders gather. Hosts the premier Blox Fruit Dealer kiosk, weapon craftsmen, and the periodic spawn of the infamous raid boss The Saw.

Sea RealmSea 1 Island
Level BracketLevel 1 - 700 (Safe Hub)
Rare
Sea 1 Island

Jungle

A dense tropical rainforest island teeming with primates. World-famous as the home of Zioles (Blox Fruit Gacha) and the ancient puzzle chamber guarding the Level 200 Saber Expert (Shanks).

Sea RealmSea 1 Island
Level BracketLevel 15 - 30