Mae Surin Waterfall Given national park status in 1981, this natural wonder, which straddles Mueang and Khun Yuam districts, encompasses a wildlife and botanical reserve, a huge waterfall and a spectacular terraced mountain.Namtok Mae Surin, its main attraction, is 37 kilometers from Khun Yuam district. It is a huge waterfall cascading eighty meters down below. Here camping can also be set up.