Nature tourism is one form of tourism which it can be possible leisure human activities in the nature . Geological, morphological, climate and mineral waters facilities are considered as the most important representation factors in tourism in the economic policies. Geotourism is a new branch of ecotourism that it focuses on the tourism subject of geological and geographical phenomena in a region. The attractive structure of geotourism phenomena is important for tourists' attraction . Since the each of these phenomena and their formation over millions of years are unique, they are named "Earth Heritage " named. Therefore, the United Nations Educational, Scientific and Cultural Organization "UNESCO" decided to identify the international importance of these phenomena in form of a serious and global organization.