Treasure Island: Guillaume Brac offers an unassuming, pleasurable documentary, with a tone and mood that matches its subject, an aquatic park near Paris. It offers a bit of insight into its inner workings, but it is more interested in the many people who frequent or work there. It’s a beautifully democratic space, where no matter who you are or where you come from, there is something to be done: sunbathe, swim, flirt, have small adventures, misbehave a bit, eat. Much like the title suggests, the place has a treasure in it; what it might be, one doesn’t really know. Brac and cinematographer Martin Rit nicely capture chaotic spots and quiet corners, and a number of interesting situations and characters. The most enchanting are two young brothers, the oldest taking care of the youngest, even if it contains an almost ominous note to it. Composer Jeong Yong-jin contributes with a score that feels like it belongs to a summer day.