Most of the area of Chiang Mai, is a fertile source of water. Mountains, forests, most of the time there are many nature tourism. The impact of tourism on the environment is to improve and develop the physical landscape and climate, development of natural areas into tourist attractions, to the benefit of using natural resources efficiently, There are revised rules of law, as well as measures on the conservation of natural resources in the long term, natural resources conservation project occurred related to tourist attractions. Negative effects tourism is part of the natural area was destroyed to create recreational activities in nature, certain types of sources can affect the nature, such as the camp fire to cut the trees, Jungle tour might affect landslide in terms of nature. The invasion area on various solid waste pollution caused by tourists and entrepreneurs that eliminate inappropriate. Destroy the landscape of all the smell Polluted water from various operators such as hotels and accommodation.