This is a missable side-quest, but I would advise you complete it as you are rewarded with a Legendary Item!
I sided with the Inquisition at the start of the game, so this guide is tailored toward that faction - however, if you sided with the Natives the quest will pretty much be the same, you'll just side with a different NPC and obtain a different reward.
When you reach Maracai Bay, you will talk to Corrientes in the village. Look around for an elder Chieftan called Daku, and the quest should begin. There are two tribesman vying to become the new Chieftan, Hakeke (Inquisition) and Zaalu (Natives).
You are tasked with completing the following 3 simple tasks;
A - Killing a Panther and removing it's Paw
B - Track a hunter called Kenan in the forest
C - Defeat the other guys 'right hand man' in a duel
All very simple, the NPC will guide you to the cave for the Panther, and the start of the search, and the duel takes place in the village.
This quest will take no more than 10mins, you receive 200 Glory for completing it (as well as the 20G), you also receive Corrientes Thunderstick or Tek Shaballa (faction dependant), and the Legendary Item 'Skull of Death'.