The Forsaken Fortress is built atop a large island and is home to many evil creatures. You venture inside the Forsaken Fortress’s massive walls several times in your effort to rescue Aryll. One of the most unusual islands on the Great Sea, the Forsaken Fortress features both indoor and outdoor areas but is also considered a dungeon because it has a map, a Compass, and a boss fight.
Piece of Heart #1
The first Piece of Heart is in a chest in the Forsaken Fortress’s first floor. Step on a pressure switch behind some barrels to get at the chest. You may collect Piece of Heart #1 on any visit to the Forsaken Fortress.
Skull Hammer
The Skull Hammer is inside a chest that appears after you defeat Phantom Ganon in your second visit to the Forsaken Fortress.
Silver Rupee (via Treasure Chart #25)
Find and open Treasure Chart #25 (Cliff Plateau Isles [G6]) to pull a chest from the Great Sea near the Forsaken Fortress. The chest contains a Silver Rupee.