Gargan Roo

At the bottom of the ladder, meet Mochos the moogle. Head left and pick up a Chain Plate and Phoenix Down. Pull the lever and then go back and right. Go towards the back and pull the chain there, then go back around to the front and hit the switch.

As the gargant travels towards Alexandria, you'll have to battle Ralvurahva.

Items: Chain Plate, Phoenix Down
Enemies: Crawler, Dragonfly, Ralvurahva