This chapter is a full walkthrough for the stage called The Lake found in Outlast II game. Here you can find tips that will help you to finish the stage. The recordings and documents, that must be recorded by using the camera, as well as the locations of batteries and bandages, which are a crucial gameplay mechanic, are also highlighted here.
In the beginning of the stage you must exit the cave and go straight ahead. You will notice a wooden bridge. Take the battery and go down the stairs. Next, go under the stairs and, by using the rocks, go to the lake. You won't come across anyone.
First, record the impaled heads (Beach Heads #1) that are in front of you. Next, go left. At the end of the bridge, on the left, you can find another battery. The building on the left is closed but you can get inside it if you crawl under the bridge. There is a hole in the middle of the floor that allows you to get inside. When you are inside of the building you can find the hidden note (Come With These Men #2). Then, unlock the door and jump from the balustrade on the left. Keep going left and the swim for a moment until you find yourself on a small beach. There, look for the sleeping bag and find another note (Old Traveler #3). After that go back to the starting point. Head right.
In the first house  on the right you can find a battery but in order to get inside that building you must first enter the building next to it  and go through the window. When you are in the yard go on the hill.
If you don't immediately use the steps presented in the picture above and instead check the rocky ledge behind you, you can find bandages.
When you are walking on the stairs point the camera straight in front of you because as you hear the characteristic sound you can also see a flash that should be recorded (Distant Towers #4). Go up.
Now the road climbs downhill a little bit. Use this to make a run-up and jump over the gap. Then, go down, under the tree and go to the nearest building. There, you can find the note (The Enemy Waits #5).
Next, go to the beach. There, you can see "HELP" written on the sand. Record it (Help #6). When you are on your way Blake will notice a raft that must be used in order to continue the quest. But before you do that reach the ends of the beach and pass the recorded writing. When you are at the end go right, you will start going up the hill. There, you can find a cave and inside of it there is another note (Towers of Metal #7).
Read it, go down and enter the second building near the campfire, there you can find bandages if you need some. If not, then you can immediately sit on the raft . In the hut on the left  you can find a battery so you should go there if you don't have a full set.
Swim straight ahead. After a while you will see a blinding light. Right after that you notice dead fish (Dead Fish #8) floating on the water. Record them quickly. Shortly after that a wave will push you from the raft. Swim, get back on it and continue rowing. Go with the river's flow and avoid stones.
You notice a burning human that falls into the water. When you get closer you notice a lot of drowned people (Floaters #9). Record them and then keep moving forward.
After a while Blake will fall from the raft. In order to go in its direction you must go under the tree presented in the picture above. Bu before you do that turn left. There, you can find another note (Knoth's Gospel Chapter 3 #10). Read it and continue your quest.
Go up until you reach the place presented above. Record the remains of a human (Warning #11) tied to the tree . Next, knock down the tree presented in the picture  in order to make an improvised bridge. Use it and go to the other side. You won't find anything useful in the area so the only thing that you can do is to run to the raft.
Use the interaction button to get it back on the water and then start rowing. After a longer moment you will fall down from the raft. Swim forward to stay away from the heretics and a demon will get you under the water. A new flashback will start.