Almost 70% of the human body is made up of water. It's no surprise that we are strongly linked with this fluid since the beginning of our lives: a newborn baby is immediately at ease when put in water. So it's even less surprising that we can have fun with water. We have also built monuments for our aquatic entertainment and pleasure! Slides that look like snakes, tubes that wrinkle like smoke in the air, towers as high and colourful as the Hanging Gardens of Babylon: a waterpark is a park of marvel.