The Master's Plaque is a quest item from The Legend of Zelda: Oracle of Seasons. This golden plaque is rewarded only to those who have completed the Master Diver's task. The Master Diver can be found in Sunken City, within the Sunken Falls cavern to the east. He instructs Link to go to the cave directly west from him and open all four eyes in a single stroke. As proof Link has done this, he requests that his plaque be returned to him from the cave.