Act 4 is fully non-linear, meaning you can sail to any island as soon as you arrive in Path of Exile 2 Currency Kingsmarch. That said, some areas are significantly harder than others, and several optional zones offer powerful permanent rewards that make later fights much easier.
Recommended Act 4 Island Order
To minimize difficulty spikes and maximize character power, follow this progression order:
1. Kedge Bay (Optional)
2. Whakapanu Island
3. Shrike Island
4. Abandoned Prison
5. Isle of Kin
6. Eye of Hinekora (Optional)
7. Arastas
8. Ngakanu
Completing the islands in this sequence gives you extra passive points, resistance bonuses, and gear upgrades before facing the most dangerous encounters in Act 4.
Why Start with Kedge Bay?
Although Kedge Bay is optional, it's one of the most rewarding early stops in Act 4.
By completing Kedge Bay, you gain:
Book of Specialization (+2 Passive Skill Points)
Early exposure to the Delirium mechanic
Liquid Emotions, used to instill Notable Passives onto amulets
The Delirium system won't become truly relevant until the Atlas endgame, but completing the Dark Mists quest here gives you a preview and valuable Path of Exile 2 Currency. The passive points alone make this island worth visiting e
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