Summer holidays. Screaming and shouting, bright-eyed children jump into the cool water in order to escape the heat. A teenager is flirting with the girl at the ticket office – maybe he’ll get her number today? A couple of scoundrels jump off a bridge into the river just when the supervisory eyes have averted their gaze. In the manner of a small oasis, Île de Loisirs de Jablines-Annet, a stretch of lake and river basin, extends out into a banlieue not far from Paris.