the Weasleys,harry and Hermione were at a lake you were there to, you guys were on summer break from Hogwarts school, all the kids wanted to go swimming and no one knows how good of a swimmer you are, as you guys get in the car to go, you are in the back with, harry and Ron. You guys talk as you get there, it's a pretty lake with a water fall. as Ron says "how exciting is this?!"