Stone Wave Cliffs ?? From the Flooded Buildings Expedition Flag, head down the path past the Rocher. A short ways down, enter the building to your left. Head up and exit to the open area, and grapple to the cliffs to the right to find Enfeebling Mark. / From the Flooded Buildings Expedition Flag, head down the path and go through the building on the left. Head up and exit to the open area, and grapple to the cliffs to the right.