Spirit Temple route for Child and Adult Link
Use the Silver Gauntlets to switch routes, then use the Mirror Shield to open the giant statue.
At the Desert Colossus, learn the Requiem of Spirit from Sheik. This warp is what makes the two visits fit together. Return to the Temple of Time, become Child Link and play the Requiem to arrive outside the same dungeon as a child.
Child Link takes the left crawlspace
Talk to Nabooru and crawl through beside her. In the Anubis room, use fire to defeat the enemy. At the fence collect five silver rupees to drop the crossing. Carry fire to the dark torches beyond it to make a key chest appear. Back in the Armos room, crawl between the doors and use the key.
When to change age
Continue the child route to the Iron Knuckle. After the fight, follow the exit outdoors and open the chest for the Silver Gauntlets. This is the handover point. Return the Master Sword to Adult Link’s hands, play the Requiem and push the large block on the right inside the entrance.
Adult Link at the statue
From the east stairs reach the statue’s hand with the Triforce. Play Zelda’s Lullaby. Grapple to the chest that appears on the opposite hand and use its key at the southeast door on 3F. After the adult Iron Knuckle, head outdoors and step on the switch for the Mirror Shield.
Turn sunlight into a route
Backtrack to the wall sun near the Armos switch room. Stand in the beam and aim the shield at the sun for the next key. Upstairs, the Boss Key room hides an eye behind a fake door. Shoot the eye, grapple onto the new platform and reach the floor switch. In the mirror rooms, bomb the cracked wall so the beam can reach the next mirror. Turn the mirrors toward the large overhead reflector. From the descending platform, shine light onto the giant statue’s forehead and grapple into the opening.
Walkthrough references
Nintendo Life’s Switch 2 Spirit Temple walkthrough · Nintendo Life’s desert crossing