You'll find yourself in the middle of arena with lever marked with white arc above and sword stick in the ground. Pick up the sword and go through the gate on left.
You'll run into a green chest and another lever. Heal and use a lever. Return to the previous location and use a ladder at a small building.
Catch a lever and start pulling it out from the pillar with hook. Stop when Cyclops appears and attack him.
Your new enemy is rather slow and signalizes his attacks. To not get hurt, dodge backward. It's important to have free space for a long jump off to the back (lead enemy from left to right and back). Attack between his blows. Risky, but more effective, is to attack him during jump. In this way you'll avoid his stomps.
Fight ends when the Cyclops kneels and is marked with a white arc. Use a "Grab". Kratos will mount him and you'll be able to use to in defeating a group of smaller enemies.
When the area is cleared, pull the lever (up to the end) until the hook appears. To jump on it, go left to a first lever used, use a ladder and catch the hook. Hanging on it, swing and jump onto a building on right.
Open the red chest and go on the other side of the terrace. Approach an edge on the right and catch a green-glowing hook. Now you have to bounce from the wall and press a button shown on the screen every time you get far away from the wall.