A good policy of sustainable tourism

We consider an extensive form game to analyze the interdependence between environmental protection of resources, the activities related with the tourism and the behavior of a local population. We answer two questions: 1) Suppose that the central planner invest in tourist activities, has he incentives to do an aggressive propagandistic campaign to convince the tourist to come for the country? 2) How good is from the environmental point of view that the local inhabitants prefer to work in tourist activities? So we analyze the situation when it's possible to obtain a sustainable tourism in a country such that the tourism is the main economic activity.