Phu Laen Kha National Park

Sandstone pillars and dry dipterocarp forest define Phu Laen Kha National Park, one of the smaller protected areas in Thailand’s northeast. Its best-known feature is Mo Hin Khao, a cluster of wind-eroded rock columns nicknamed the “Stonehenge of Thailand” — an odd, almost lunar landscape that’s rare this far inland. Entry is 100 THB for foreign adults, 50 THB for children (20/10 THB for Thai nationals), and gates are staffed roughly 08:30-16:30.

Experience

The trail to Mo Hin Khao is the park’s main draw and manageable for most fitness levels — a walk through forest that opens onto the exposed sandstone field, with the pillars standing anywhere from waist- to head-height, shaped by millennia of wind and rain. Elsewhere in the park, shorter trails pass a scatter of caves, some with faint rock art whose age isn’t well documented, and viewpoints looking out over Chaiyaphum province’s patchwork of farmland and forest reserve. Hornbill calls are common at dawn, and the forest floor shows tracks from wild boar and barking deer, though sightings of the animals themselves are rare.

Atmosphere & Timing

This isn’t one of Thailand’s marquee parks — visitor numbers are modest even on weekends, and it’s easy to walk the Mo Hin Khao trail without meeting another group. Golden hour is genuinely worth timing for: low light picks out the texture in the eroded rock in a way flat midday sun doesn’t. Cool season (November-February) brings the most comfortable hiking temperatures; by April the exposed sandstone field gets punishingly hot with no shade.

Watch out: the rock formations have no barriers or railings — supervise children closely near the taller pillars, and wear shoes with grip since the sandstone gets slippery when wet.

Insider Tip: Combine the visit with Mo Hin Khao and Tat Ton National Park, a short drive away with its own waterfall — both sit within easy reach of Chaiyaphum town, making a full day out of what’s otherwise a quick single-trail stop.

Bring water and insect repellent regardless of season; shade is limited once you’re out on the sandstone field, and the park’s facilities are basic by design. A guide isn’t required for the main trail, but the park office can arrange one if you want help spotting the rock art or navigating the less-marked side paths.