Take your camera to capture the stunning cascades of Tat Vimthip Waterfall. If it's raging, you may be able to feel the mist on your skin.
You're spoiled for sightseeing choice when visiting Bung Khong Long. Tat Vimthip Waterfall is a good place to start here, but there are lots of other interesting spots to check out. Naka Cave, Phu Langka National Park, and Kinnaree Waterfall are not far from the cascade of water and will top off your day nicely.