Than Ngam Waterfall 

A medium-sized waterfall situated amidst lush and pristine forests, the waterfall is more than perfect for swimming and relaxation. Traveling to the site can be done via Udon Thani Nong Bua Lam Phu or Udon Thani Khon Kaen route. For the first route, travel along the highway for approximately 45 kilometres, turn left to Nong Saeng District and proceed for another 5 kilometres. For the second route, travel along the highway for approximately 55 kilometres, turn right to Nong Saeng District and proceed for another 25 kilometres.