When the sun goes down, the girls try to go outside and get some fresh air. As they walk, they notice that their skin is starting to peel. They're worried about how they're going to keep it from getting too hot, so they start to sweat a little bit. One of the girls asks if they can use seaweed to make a kind of "sun screen" , which is like a protective fabric around the girl's body to keep the sun from getting in her eyes. The girls decide to use seaweed, which they grind into a paste, to make their own kind of sun screen.