1. The Rupture (near Asher Mir) – You’ll find the first Savathun’s Eye on Io just as you spawn in The Rupture. It’s stalking poor Asher Mir. I guess he doesn’t mind it since it’s not making an unbearable racket, eh?
2. Sanctum of Bones lost sector – Head inside the first room of the lost sector and you’ll spot it in the distance.
Just in case simply shooting the thing won’t do, loop around the level until you reach the rock formation with the three Taken psions. You should be able to get close to it with a bit of jumping.
3. The Rupture (outside the Aphix Conduit lost sector) – With the Pyramidion to your right, keep going straight ahead.
Turn around and you’ll spot this eye behind the bluff. You’ll even see the Pyramidion in the distance and the Aphix Conduit entrance is just behind you a few meters away.
4. Aphix Conduit lost sector – Make your way to the boss’ room all the way to the chest. Turn around and you’ll spot the eye in the ceiling.
5. Lost Oasis (spawn area) – Spawn in the Lost Oasis area on Io and look to your right.
In the distance, on top of a rock formation, you’ll find one of Savathun’s Eyes.
6. Lost Oasis (giant tree) – Head towards the giant tree in the center of the Lost Oasis area.
You’ll find it hidden behind one of the crevices and the tree’s roots.
7. Giant’s Scar – From the spawn point, make your way to the drill area. You’ll find one of Savathun’s Eyes clinging on the machinery.
8. Excavation Site II – From the drill area, head towards the bluffs where you’ll see a peculiar doorway. That’ll take you to Excavation Site II.
Run past the mobs in the first room. Once you reach the second room, turn around and the eye will be just above the door.
9. Terrabase Charon – Fast travel back to Giant’s Eye and ride your sparrow all the way to Terrabase Charon. The eye is at the central “pit” area where all the various enemy mobs are fighting. Take note of the doorway behind that Taken blight as well.
10. The Wraith Mines – That doorway will take you to the Wraith Mines. Follow the corridor until you reach the first room with Taken mobs. The last Savathun’s Eye on Io can be found here.
Next up, take a look at the Savathun’s Eye locations in The Whisper mission.