As far as I know, you could go directly to this puzzle after turning the power on. There are clues to find around the camps, but I didn't find all of them before solving. When you're ready to do the final puzzle, head around behind the ship and up the walkway. Follow this path until you reach a large hole in the ground. Activate the pedestal in front of the cliff and you'll see 7 symbols with paths on them. There are 6 "valves" located around this area. One behind you on the path leading up to the hole, 4 on the pillars left and right of the hole, and 1 on each side down the stairs. You'll need to open/close the valves in accordance with the picture posted below.
Lastly, turn the moon dial on the side of the hole to "new moon", which is the circle without any coloration. Then turn around and press the switch on the pedestal that you flipped earlier. This will open up the pathway to finish the chapter.
The journal with completed info for the puzzle: