Haunted Castle

Levels 1725-1825 drop you into Haunted Castle, a gothic spire that sits firmly in Sea 3's endgame grind. By this point you're well past the early Third Sea islands and pushing toward the higher level brackets, so the goal here is steady, no-frills XP rather than story progression. The mobs you'll be clearing are Reborn Skeletons and Living Zombies, both packed densely enough around the castle grounds to make this a reliable AFK-style or active farming spot. What sets the location apart from a plain grind island is the loot: Ectoplasm drops from the undead here, and the Soul Cane is the standout pull worth chasing. Practically, bring a fruit or fighting style with wide AoE so you can sweep multiple skeletons and zombies in one rotation instead of dueling them singly. Park yourself where the spawns overlap, let the Ectoplasm pile up, and keep grinding until your level outscales the bracket. Once you've crossed roughly 1825, move on to the next Sea 3 island that fits your new level range.