You will begin in a large, open forest area. Head forward and climb up the handholds on the column near the fence. Reach the top to find a photo spot. Take a picture of Chase’s grandfather’s truck, then climb back down. Approach the fence and Drake will point out a tower that you will need to climb. You can tackle this task in a few minutes, though. For now, walk to the left and go through the yellow-rimmed windowsill. Go right and jump up onto the dilapidated wall. Climb left, then up. Swing over onto the other side and climb down one peg to the right to find a charcoal etching spot. Climb back down and return to the clearing.
Head to the right, down the old cobblestone path, and through the yellow-rimmed window. Curve around to the left and walk through the old doorway. Drake will find a shredded map of the site. Put the pieces together using the touch screen in the same way that you have for various other items. Jump over the low wall in front of you and run forward to the next wall. Climb up the window to scale the wall, and go across the monkey bars. Jump over the wall to dangle from the other side. Climb left and down to the ground.
Boos Chase up by the column to the left and climb up the crate that she will push down. Follow her to a column. Don’t climb up after her just yet, though. Instead, keep following the path to find a wall of bamboo. Slice it down with the machete. In this small area, climb up the wall at the top right side and swing over and up for a treasure. Then return to Chase at the column and follow her up and around to the top. Once you’ve reached the top, walk across the plank. You will have to balance halfway across. Climb down to the inside of the tower, changing sides as necessary, and climb down the rope. Loop around the mouth of the crater and climb down the rope here to descend into the crater. Once you reach the bottom, a cutscene will play and the chapter will end.