In order to get this achievement you have to find the campfire location on Balboa Island and pick up all five of the notes around it. The campfire is at the base of the cliff that relay station 6 is on top of and you can see station 6 from the campfire. Follow the signs and trails that lead to relay stations 4 and 6 until you come to a sign - The camp is up a hill to the left. While you are at the camp, pick up the five notes in the surrounding area. Also, make sure to pick up the lightbulb from one of the figures surrounding the campfire as this will be used for the "Fix Errol" achievement.