Turn having the device to your back. Jump to grab the handhold on the wall ahead, then jump up to grab the next one. Traverse to the left around the corner and jump up to grab the next handhold above. Jump to grab the handhold on the left.

Traverse around the corner. When you reach the end, jump up twice to grab the next two handholds. Jump to grab the handhold on the left hand wall.

Traverse left and around the corner. Jump to grab the handhold above and shimmy left. Then jump up to grab the upper handhold.

Jump up twice to grab the topmost handhold and traverse to the left and around the corner. Drop to the small square ledge below and turn left. Jump to grab the walkway ahead, shimmy left if necessary and pull up.

Pulling the first metal ring - Make a U turn to the right to find a square block at the back. Jump to grab the handhold and climb on the block. Climb up the two handholds and pull up on the ledge.

Go to the back of the angled support and use the Grapple to catch the metal ring. Pull it to loose the support free.

Pushing the second stone panel - After the cut scene, climb down to the walkway and go to the other side.

Take a look above to spot a metal ring on the ceiling. Use the Grapple to catch it and swing across.

Continue to the other side where the second tower is. Enter the alcove with the glowing symbol. Grab onto it and push the stone panel forward as much as you can.