Study of the sustainability of tourism development and reception capacity with the action plan of the City of Mali Lošinj': 1. Analyzed key development indicators (physical, infrastructural, demographic, socio-cultural, economic); 2. Analyzed the research of the attitudes of the local population and tourists 3. Analyzed secondary data sources - spatial planning documentation, development/strategic documents, reports of public companies and other relevant professional and scientific sources; 4. Detected limitations, 'bottlenecks' and negative influences that determine the carrying capacity; 5. Described alternative development scenarios in order to determine the limits of acceptable changes, ie to determine the range of carrying capacity; 6. Developed an Action Plan in order to minimize the negative impacts of tourism and prevent those forms of tourism development that could jeopardize the sustainability of the destination.