After entering Lorule for the first time, Princess Hilda informs Link he must save the Seven Sages trapped in portraits by Yuga. During Link's quest, he eventually makes his way to the Swamp Palace, which he is unable to enter due to the water inside the dungeon. After using a Bomb Flower to unblock the flow of water, Link enters the dungeon, where he defeats Arrghus and rescues Oren.
The puzzles in the Swamp Palace rely primarily on the Hookshot. Link must also use devices to raise and lower the water level.