Start off by shooting the Eye Switch placed in the eyes of the giant figure at the northern end to spawn a chest, open it for Stray Fairy #1 .
You may notice that somethings are upside down, we’ll be flipping the entire temple at some point so don’t fret and just follow along. Exit to the west and into the Floor Switch Room.
Floor Switch Room
Defeat the three Real Bombchus and you’ll notice there are four switches here. Blow up the wall to reveal some crates and a block behind it. Pull the block out and push it onto the first switch you come by.
Now, there are two smaller switches and a large one left. Use the Elegy of Emptiness while Human Link and Zora Link on the smaller switches and use the Goron Mask on the large switch.
Head into the second half of the room and Bomb the cracked floor.
Lava Basement Room
Now head down the steps and reflect the light onto the Sun Block. Put on the Goron Mask and walk through the lava to reach the chest that has the Dungeon Map inside.
Step back out and punch all six Armos statues to defeat them and spawn a chest with Small Key #1 .