You'll be at the base of a large statue and some bugs will spawn, so kill them all and then climb up the side of the statue. Once you reach the platform above, head towards the screen to find a Gorgon Eye and two Red Orb Chests. Go the other way and as you cross the next section, the walkway behind you will crumble and break.
Keep going forward, killing more bugs in your way, until you get to a long slide. Go down the slide, avoiding the one obstacle on your right side, and then jump when you get to the end. As soon as you jump, press R1 to grapple the glowing spot in the air and land on the cliff. Climb up and follow the path at the top, grabbing the Ice of Poseidon item.
As soon as you grab it, enemies will spawn, so take them out with your newly found powers, although there isn't much there. Once they're all dead, go through the opened gate and follow the path to the next area, where you'll happen upon a Gorgon Eye right in your way.
Drop down to the snake thing and grapple the clamp, hitting the shown button to remove it. Once it stops, grapple to the tower and climb it until you end up on a staircase. Go down to grab a Phoenix Feather, then start ascending. When you get to the point where you can't go up, go left and out into the open.
Once you're out in the open, go to the right to find two Red Orb Chests, then go to the left and smash the eggs in your way (one has an enemy inside). Instead of climbing the ladder, keep going to the left to find a Gorgon Eye and Red Orb Chest. Go back and climb the ladder to start the next chapter.
