Route: See each Black Market for access and route information.
Lore & Dialog
Hanzo tells you, "Ahh, a true and honored Master of the Societies. I am pleased to speak with you. I have a task for you upon the Dark Isle, one that is worthy of your obvious skill. I wish you to destroy 100 of the foul, Blighted Coral Golems upon the isle. Do this for me, and I will reward you greatly for your impressive deed."