Dong Na Tham Forest, it’s located in North of Pha Taem National Park. There are 3 consecutive district area is Khong Chiam District, Sri Muang Mai District, and Pho Sai District, Ubon Ratchathani Province. Traveling at Dong Na Tham Forests are hiking and sightseeing the natural forest, rocky mountain and the Mekong River. For the season, to visit of Dong Na Tham Forest is during November to December which are flowers in full bloom and suitable for seeing the flower along the rocky ground, such as Yard Namkang, Dang Ubon, Aen Ah , Leuang Pisamor and the flower fields as flowers of which names were bestowed by the Her Majesty Queen Sirikit, such as Dusita, Soi Suwanna, Manee Dheva, Tipkesorn, Saras Jantara, and etc.