The teens are having fun with their friends sitting around the campfire talking and enjoying them selves. I would't choose music for this because I don't really picture this scene having music. But for the background noises I would choose the fire popping, kids laughing and talking and also crickets in the background and birds. The shot will be long shot.
The next morning the kids are right out side their cabin and they are swimming i the pond. The music that I would choose is happy music because the kids are having fun and I would also have the sound of splashing and kids yelling because they are having fun. Long shot.
The kids were having fun and then it started to rain and they all had to run inside so that they didn't get rained on. I would choose to not put music in because I don't like the thought of music with this scene but I would choose to put foot steps and splashing water and also sounds of rain.