The thesis defines the concept of tourism and sustainable development and their interrelationship. Modern times have made it easier to change one's place of residence for leisure, getting to know new places, escaping from everyday life... Facilitated movement has led to the emergence of mass tourism. Although tourism is one of the fastest growing industries in the world and its importance cannot be ignored, its negative consequences must be taken into account. The disadvantages of tourism need to be minimized by implementing sustainable development. A development that meets the needs of today without compromising future generations. The European Community, aware of the growing problem of mass tourism and the destruction of the coastal area, has adopted a number of regulations and strategies to promote sustainable development. The paper deals with the coastal zone management program on the example of Lebanon and examines the position of Croatia in sustainable development and nautical tourism.