Explore the hidden Mr. Monkey Island to find the lost treasure to pass this trial! Talk to the brown-haired digging pirate on Brawl Island to get started.
(Accepting this quest unlocks Mr. Monkey Island and you will be given a Mystery Note to aid in the Hunt. It will be added to your inventory til you complete this quest. If you get lost, refer to the directions with a capital letter.)
Spoiler: Mr. Monkey Island:Mystery Note/Hunt directions
When in Monkey Island (not brawl island)
Down from guy with shovel & boxed in crates & barrels -