The playschool is going swimming, and it’s Caillou’s very first time on a water slide, but he's a little nervous and doesn’t want to slide down it. Miss Martin tells him it’s natural to be afraid of things the first time you try them - why, she was afraid of the swings when she was a little girl. Caillou musters up his courage and, pretending he’s a brave mountain climber, he climbs up the ladder and slides down, discovering how fun water slides really are!