How to Get to Third Sea

Beginner

Unlock Third Sea — level 4200 requirement, Shanks boss fight, Gatekeeper NPC location.

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How to Get to Third Sea

The Third Sea (Sea 3) is the current endgame. It introduces the strongest weapons (3SS V2, Gryphon, Dual Dark Blade), Golden Staff V2, and access to the final quest rewards.

Requirements

  • Must already be in Second Sea
  • Level 4,200

Step-by-Step

  1. Reach Level 4,200 while in Second Sea
  2. Find the Gatekeeper NPC
  3. The Gatekeeper will test your resolve — this triggers a boss fight against Shanks
  4. Shanks Boss Fight:
    • Shanks has two phases
    • Phase 1: standard combat, dodge his attacks and deal damage
    • Phase 2: at 25% HP, a cutscene triggers — "Impressive. Didn't expect someone like you to push me this far."
    • Shanks enters his second form with increased damage
    • You do NOT need to kill him — get him to low HP and survive
  5. After the fight, Shanks says "We will cross paths again in the Third Sea"
  6. The Gatekeeper teleports you to the Third Sea

What Unlocks in Sea 3

Content Details
3SS V2 Soaring Phoenix, Purgatory Descent, 3000 Skies — best sword in the game
Dual Dark Blade Midnight Havoc, Brilliant Slashes, Soul Eruption
Gryphon Shanks super boss drop
Golden Staff V2 Raiden Core + 200 mastery V1 + 2M
Ace Sword 0.1% from final quest reward
Rainbow Haki All 12 colors + Prismatic Shard
Prismatic Shard Craft at Doran the Forge (5 Mythic materials)

💡 The Shanks fight is a checkpoint — you don't need to defeat him fully, just survive to trigger the cutscene. You'll face him again at full strength in Sea 3.