To the north of Nan in Nong Bua district lies Doi Phu Kha National Park. The terrain is mainly forested lands on limestone mountain ranges, the source of several streams which merge into the Nan River. The elevation is about 1,900 metres above sea level. Here are found several rare and near-extinct flora, particularly the Chomphu Phu Kha, whose pink flowers are in full bloom during February.
In the morning, a sea of mist can be seen drifting across the valley. There are also several scenic waterfalls and the Wa brook waiting for tourists who like to shoot the many rapids. Permits to camp can be applied for. Alternatively, tourists may choose to utilize the accommodation services in the park.