After a long cutscene, you’ll reach a forest. Pick up your phone and exit the car. Go straight in the path until you reach a sign where the path diverges. Check your phone to check the path in which you need to go. You have to move straight ahead. Eventually, you’ll reach a broken bridge and cannot continue straight. Go back to the sign and from there start moving up the hill. After some time you’ll lose the mobile signal. Turn right and go up the stairs where a small sequence will play.
Now, go in the opposite direction down the hill until you reach a broken bridge. Walk down the bridge and pick up a plank. Use the plank to cross the bridge.