Blood for Blood: Memorial Grove 2

Rebel Outpost: Shining Waters South: Head to the outpost to find a Tenakth clan member. If you've already cleared the outpost, Aloy will investigate further for prisoners. Look for two poles in a triangle formation towards the southeast of the search circle. Use your Focus to find tracks leading to a hidden hatch. Open it to find Nakalla.

Meet Dekka at Fall’s Edge: Travel southwest to Fall’s Edge. Speak with Dekka, who reveals that Arokkeh has captured Kavvoh. Kavvoh claims he was there to warn of a rebel attack and offers to show you their campfire location. Dekka will take Kavvoh's place in captivity, and Arokkeh will accompany you.

Go to the Campfire: Follow the markers north of Fall’s Edge to a rebel campfire. Approach silently and defeat the three rebels, including one with a shield. Use rocks to lure the shielded rebel away for a Silent Strike if desired. Once clear, approach the campfire and wait for Arokkeh and Kavvoh.

Kill the Rebels and Their Machine: After a cutscene, follow Kavvoh to a waterfall. Use the highlighted holds to climb across to the other side. Rebels with a Behemoth will appear from the north. Focus on defeating the Behemoth. Target its Force Loaders (canisters on its head) to disable its anti-gravity attacks. Avoid its ground slam attack that causes the Crushed effect. After defeating the Behemoth and any remaining rebels, collect the loot.

Return to Fall’s Edge: Speak with Kavvoh and Arokkeh, then return to Fall’s Edge to speak with Dekka, completing the quest.