International audienceThe designers and managers of theme parks seek first of allto encourage the visitor's immersion in the heart of an ex-traordinary experience. Nevertheless, access to this type ofconsumption experience is not systematic and the visitor'simmersion does not seem permanent. In this article, we of-fer a better understanding of the park experience. Buildingon the analysis of 41 introspective diaries of theme parkvisitors, we identify states of immersion but also other ex-perienced states (submersion, emersion, reject). On a ma-nagerial plan, this approach offers understanding keys toparks managers and more globally to managers of touristsites offering extraordinary experiences.Les concepteurs et managers de parcs à thème che...