DOI Phu Kha National Park. With a high mountain range, which has beautiful natural scenery. Fresh air especially DOI Phu Kha With cloud cover throughout the rainy season and the winter is very beautiful views. DOI Phu Kha is a forest with an abundance of plants and wildlife that are important ecosystems, as well as the source of many rivers such as the Nan rivers namwa rivers PUA riversthat nourished beam life Nan province.