714144ed_Lost_Isle___Zelda_Dungeon_Wiki__Description
[Item/ Destination] Heart Container [Description] 
When you have killed all Digdoggers, head up and pick up the Heart Container there. Step on any portal to return to the beginning. In the cutscene, you will see that the blue flower that blocked the path in Tahou Woods disappears. Now, leave this dungeon.
Lost Isle - Zelda Dungeon Wiki
Description