The lack of sustainable development strategies of the tourist resorts from Romania caused the structural dynamics of their economy to record large fluctuations under the impact of determinants with unpredictable developments. The spectacular dynamics have led to developments difficult to predict, in many situations that generate environmental conflicts, where the economic pressure has exceeded the support capacity of the natural environment. In this study, we aim to analyze the dynamic relationship between tourism and the other components of the economy, from each resort from Romania. The significant growth of tourism in recent years requires new approaches, relevant for understanding the role of tourism in increasing the complexity of the local economy. Measuring the role of tourism in the development of local economy was achieved by building an economic database for all tourist resorts from Romania (according to Government Decision No. 107 of 2018), at the four-digit NACE code level (Classification of National Economy Activities), for the economic indicators considered relevant: number of companies, number of employees, and turnover and profit, for the period 2000–2016, as well as at territorial administrative unit level. Detailed analyses revealed very different structural dynamics, the spectacular dynamics, lacking a coherent strategic framework, led in all situations to the emergence of environmental conflicts. Tourist resorts in which tourism has become an essential component of economic development have based their development on capitalization of local resources, which led to multiplication effects, materialized in a spectacular evolution of the local economy, and an increasing pressure on the natural environment.