‎ Sea Hearts Chart The Sea Hearts Chart is a special Sea Chart from The Legend of Zelda: The Wind Waker. It shows the location of Treasure Charts that lead to Pieces of Heart. On Windfall Island, it shows the number of Charts left on that Island. It can be found at the bottom of the Great Sea by using the Grappling Hook to bring up the Treasure Chest that contains it. It can only be found if Link has already found Treasure Chart #32.