Namtok Pha Iang

Namtok Pha Iang tumbles over a tilted limestone shelf on the western edge of Tat Ton National Park in Chaiyaphum province. The name describes exactly what you find: “pha” means cliff and “iang” means leaning, and the water follows that slanted rock face down to a shallow pool rather than dropping straight. It’s a quieter alternative to the park’s main Tat Ton Falls, reached by its own access road well away from the busier visitor area.

The waterfall forms where the Huai Chi Long stream cuts across the sloped cliff, and the dry evergreen forest around it keeps the site shaded even at midday. Established trees line the short walking trail from the parking area, which covers about 800m of mostly flat ground. Two more falls sit close by on the same stretch - Namtok Phanit around 500m before Pha Iang, and Namtok Pha Song Chan a further 1,200m walk past it - so a longer visit can string together all three without much backtracking.

Water levels swing hard with the seasons. From around October through December, at the tail end of the rains, the flow is strong enough that the sloped rock becomes an informal natural slide, and it’s a genuine local draw for cooling off. By the peak of the dry season, March to May, the same rock face can run thin or nearly dry, leaving mostly the limestone formations to look at rather than swim in.

Insider Tip: Weekday mornings are your best shot at having the slide section to yourself - weekends in the cool season bring family groups from Chaiyaphum town for exactly the same reason you’re there.

Getting here requires your own transport. From Chaiyaphum town, follow Highway 2159 toward Nong Bua Daeng for about 27km to the Ban Chi Long Nuea area, turn off for roughly 2km to the parking lot, then walk the final 800m in on foot. Because Pha Iang sits inside Tat Ton National Park, the standard park entrance fee applies at the gate - 200 THB for foreign visitors, 40 THB for Thai adults - and the park keeps to daily 08:00-18:00 hours.

Watch out: The sloped rock gets slick when wet. Non-slip sandals or water shoes handle it far better than flip-flops or bare feet, especially if you’re using the natural slide.

For more of the park, Namtok Tat Fa is another sloped-rock waterfall on the opposite side of Tat Ton, and the Tat Ton National Park hub covers the main falls and trail network. Chaiyaphum’s other attractions are listed on the Chaiyaphum destination page.