Captain Henqua's Treasure Map

 is a quest item in.

Treasure
The map leads to Captain Henqua's treasure, a location that appears west of Junvik Village after assembling the map. It contains:
 * 20x Golden Suole
 * 56x Silver Lusce
 * 270x Copper Pand
 * Emerald, Black Pearl, Ruby
 * Magnera's Chain