Path of Exile 2's 0.5 patch, "Return of the Ancients," brought the new "Runes of Aldur" league along with a quiet but meaningful change to one of Act 4's easy-to-miss side quests. The Shark Fin quest, once considered a forgettable detour, now offers powerful permanent character bonuses that can shape your defensive layout for the rest of the game. Since this choice cannot be changed once made, knowing what you're getting into beforehand is the difference between a stronger build and a permanent regret.

This guide walks through everything you need to know about the Shark Fin quest in PoE 2 0.5, from triggering the boss fight to picking the right reward for your character. Whether you're a returning player who skipped this content in earlier patches or a newcomer running Act 4 for the first time, the information below covers it all.

PoE 2 0.5 Shark Fin Quest Guide

In Path of Exile 2 patch 0.5, the Shark Fin is a quest item dropped by the Great White One boss on Whakapanu Island in Act 4. After the recent buff, turning this fin in to the healer Kaimana grants one of two permanent passive rewards as part of the Tribal Medicine quest. The bonuses are far stronger than the previous version, which is why so many guides now warn players not to skip it.

To help you make the most of this opportunity, the sections below cover what the quest is, where to turn the fin in, the available rewards, which reward to pick, and how to complete the quest step by step.

What Is the Shark Fin Quest in PoE 2 0.5?

The Shark Fin quest, officially known as the Tribal Medicine side quest, begins automatically when you pick up the Shark Fin from the Great White One boss on Whakapanu Island. The fin is a 2x2 inventory item with the flavor text: "The sea gave it strength. Now it serves a greater purpose."

The game gives you almost no direction beyond telling you to "find a use for it." That's where players get stuck. The quest is fully optional, but the rewards in 0.5 make it well worth pursuing for nearly any build.

Quick Quest Facts

• Act: 4

• Boss: The Great White One

• Boss location: Shark Pit, Whakapanu Island

• Quest giver: Kaimana (tribal healer)

• Reward type: Permanent passive bonus (one of two choices)

• Reversible?: No, the choice is locked once made

What Is the Shark Fin Used For?

The Shark Fin has one purpose: hand it to Kaimana to receive a permanent character buff. After the 0.5 update, the rewards became substantially better than before. In earlier patches, most players simply skipped this quest because the rewards weren't worth the trouble. That has changed.

Now, the fin grants either a flat 30% increase to all three primary defenses (armour, evasion, and energy shield) or a package of three secondary defensive conversions. Both options offer real, build-shaping value, which is why this quest has gone from a skip-tier detour to a mandatory stop in your Act 4 run.

Where to Turn In the Shark Fin?

Kaimana, the NPC who accepts the Shark Fin, moves locations depending on your story progress. This is one reason players often miss the turn-in.

If you've already finished Act 4, head to Kingsmarch and look for the Karui Ship at the southern dock. Kaimana stands near the chieftain Tavakai. If she isn't there, sail south to Ngakanu Island instead, since she may still be in the village. Note that some players have reported the NPC bugging out, in which case progressing further in the campaign or relogging usually fixes it.

PoE 2 0.5 Shark Fin Quest Rewards (Permanent Buffs)

After turning in the fin, Kaimana presents two reward options. Both are permanent and apply to your character for the rest of the playthrough.

Reward Option 1: Kaom's Lesson (Red)

• Grants 30% increased Armour, Evasion, and Energy Shield

Reward Option 2: Rakiata's Lesson (Blue)

• 15% of Armour also applies to Elemental Damage

• Gain Deflection Rating equal to 12% of Evasion Rating

• 12% Faster start of Energy Shield Recharge

Kaom's Lesson is the simple, scaling option that boosts your raw defense values. Rakiata's Lesson is the more specialized choice that converts existing defenses into secondary bonuses across all three damage types.

Which Shark Fin Reward Should You Pick?

The right choice depends on your build, your gearing plan, and how confident you are in your endgame defensive layout.

Pick Kaom's Lesson (30% Increased Armour, Evasion, and Energy Shield) If:

• You run a hybrid or split-defense build that uses two or all three defensive layers

• You're not certain yet what your endgame defenses will look like

• You stack high base armour, evasion, or energy shield through gear and want a multiplier on all of it

• You want flexibility because the bonus scales with whatever you stack later

This is the safer, more forgiving option. Many build creators recommend it as the default since the 30% multiplier rewards any defensive investment without forcing a particular playstyle.

Pick Rakiata's Lesson (Conversion Package) If:

• You play a pure armour build and want armour to also reduce elemental damage (this is a tough stat to get otherwise)

• You play an energy shield build where faster ES recharge is hard to come by

• You play an evasion-focused build that benefits from extra deflection rating

• You already know exactly how your endgame defenses will be structured

For a pure armour build, the 15% armour-to-elemental conversion is especially strong because that stat is rare on gear. Energy shield builds also love the faster recharge. Note that deflection rating has a cap, while armour-to-elemental does not, which is something to factor in for late-game scaling.

Class-Specific Quick Notes

• Warrior/Titan (armour-stacker): Rakiata's Lesson is often the better long-term pick due to armour-to-elemental

• Sorcerer/ES builds: Rakiata's Lesson for the recharge speed

• Monk/hybrid evasion-ES: Either works; Kaom's is safer if unsure

• Mind over Mana / Eldritch Battery users: Neither option synergizes perfectly, so Kaom's flat scaling tends to win

Should You Do or Skip the Shark Fin Quest in PoE 2 0.5?

Do it. This is no longer a skippable side quest in patch 0.5. The rewards are strong enough that most builds will feel a noticeable difference in survivability after picking either option.

Here's why the quest is worth your time:

• Both rewards are permanent, applying for the entire character's lifespan

• The 30% multiplier or the conversion package both offer values that are hard to replicate from gear alone

• The boss fight is short and the detour adds maybe 10 to 15 minutes to your Act 4 run

• Skipping it means losing a stat block that competitive builds will be using

The only catch is that the choice cannot be reversed. Many players in the community have asked GGG to allow swapping the reward later, similar to the statue buffs in Act 2 and Act 4's prison, but as of patch 0.5 there is no way to change your decision. Pick carefully.

How to Complete the Shark Fin Quest

Here's the full step-by-step process from start to finish.

Step 1: Sail to Whakapanu Island

Reach Act 4 and hire Mikoru's ship from Kingsmarch. Whakapanu Island sits in the northern cluster on your map. The zone is roughly level 51 content, so make sure your gear can handle it.

Step 2: Find the Shark Pit

The island layout is randomized every instance, so there's no fixed coordinate. Walk the perimeter of the map until you find a large circular sandy arena open to the water. That's the Shark Pit.

Step 3: Trigger the Great White One

The boss does not spawn on zone entry. Walk to the water's edge inside the arena and the shark will surface from the sand. If nothing happens, try exiting and re-entering the zone, since the boss occasionally fails to spawn on the first attempt.

Step 4: Defeat the Great White One

The boss deals only physical damage, so elemental resistances are irrelevant here. A few tips:

• Use lightning damage, the boss is weak to it

• Stay mobile, the sand-swim attack telegraphs as a ripple under the surface

• Equip movement speed boots before the fight

• Ranged builds trivialize this; melee characters need to play carefully

After the fight, loot the Shark Fin from the ground.

Step 5: Sail to Kaimana

Head to Ngakanu Island (the first island south of Kingsmarch) or to the Karui Ship at Kingsmarch's southern dock if you've finished Act 4's main story. Find Kaimana and hand her the fin.

Step 6: Pick Your Reward

Choose between Kaom's Lesson and Rakiata's Lesson based on the analysis above. Confirm your selection and the Tribal Medicine quest completes.

More FAQs About Shark Fin in PoE 2 0.5

Can I change the Shark Fin reward after picking it?

No. As of patch 0.5, the choice is permanent. Unlike the Qimah quest reward or the act statue buffs, there is no NPC dialogue or menu option to swap your selection. Many players are asking GGG to add this functionality, but it has not been implemented.

What happens if I accidentally drop the Shark Fin?

You can pick it up again. Some players have reported that the quest state resets when the fin is dropped, allowing you to fight the Great White One a second time if needed.

Is the boss fight required to complete Act 4?

No. The Tribal Medicine quest is fully optional and does not block any main story progression.

Why isn't Kaimana on the Karui Ship?

If the ship is not docked at Kingsmarch, Kaimana has temporarily relocated to Ngakanu Island. Either travel there directly or progress further in Act 4's main quest line to bring the ship back.

Does the quest reward stack with other defensive bonuses?

Yes. The Kaom's Lesson 30% increase stacks multiplicatively with other "increased" defenses on your gear and tree. Rakiata's Lesson conversions add to your existing values rather than replacing them.

Can I complete the quest after finishing Act 4?

Yes. Even if you skipped the boss originally, you can return to Whakapanu Island, kill the Great White One, and turn in the fin to Kaimana on the Karui Ship at Kingsmarch's southern dock. Returning players from earlier patches who already completed the original (weaker) version of the quest, however, cannot redo it for the new rewards.

What's the recommended pick for new league characters?

For most new characters in 0.5's Runes of Aldur league, Kaom's Lesson (30% increased Armour, Evasion, and Energy Shield) is the safest pick because it scales with whatever defenses you build later. Specialized builds with a clear endgame plan should consider Rakiata's Lesson instead.

The Shark Fin quest is a small detour with outsized rewards in PoE 2 0.5. Take a few extra minutes during your Act 4 run, kill the shark, and pick the reward that fits your build. With the choice being permanent, a little planning goes a long way toward a stronger character.