There are a number of definitions of the terms tourist and tourism among people and every one of those definitions include some kind of travel. A tourist is a person who is temporarily leaving his or her permanent residence in order to visit some tourist destination, but without any economic activity. Furthermore, tourism is based on the tourist’s travel and stay in a destination. People have always traveled. In the beginning those travels were only migrations due to the existential reasons, and later, along with the development of the industry, economy and society in global, people begin to travel in order to fulfill their curiosity and desire to escape their everyday life. Today, people travel for a number of reasons, that is, needs and motives. Due to different motives and needs for traveling, different kinds of tourism developed, from ethnic, historical, recreational to ecological. Because of the mass tourism and pollution of tourist destinations, there is a need for sustainable tourism development based on optimal use of resources, respect of cultural goods and local people’s tradition, encouraging tolerance and ensuring equal benefits to participants in providing tourist services. Eco tourism is the kind of tourism that seeks for preservation of the nature and environment in terms of tourist travels. Nature or landscape, flora and fauna of an area are important elements of a tourist offer, but hotel construction, sports facilities, ski resorts and other tourist facilities have negative impact on them. Water that is seas, rivers and lakes are very attractive tourist resources, but by numerous visits to their shores and beaches they are being destroyed. Traveling and using of different means of transportation also leave consequences on air quality not only locally, but globally. Furthermore, accommodation, big festivals, airlines are big producers of waste, and that is why tourists should be encouraged to behave eco friendly.