Phu Phra Forest Park

Phu Phra Forest Park — despite showing up on some maps and directories as “Phu Phra National Park,” it’s officially a DNP forest park, a step below full national-park status — sits inside the Dong Mun National Forest Reserve in Tha Khantho district, Kalasin, about 4 km from the district office. It’s one of three forest parks in the province, and one of the least developed.

The park’s centerpiece is Pha Suay, a cliff on the far side of the Phu Phan mountain range with a drop of roughly 150-200 meters and open views across the rural valley below. Forest officials ask visitors to register before climbing to the cliff edge — a straightforward safety step given the exposed rock and lack of railings. Two caves round out the site: Tham Siam Sap, and Tham Phra Rod, a narrower passage about 2 meters wide and 30 meters long, formed where the limestone cliff has split and separated over time.

Trails through the park cut through dry evergreen forest, past outcrops of pale limestone rock, with birdsong the main soundtrack outside of the occasional local visitor. Because it’s a forest park rather than a full national park, facilities are minimal — expect basic marked trails and a ranger post near the entrance rather than a visitor center or paved paths, which is part of the appeal if you’re after an unpolished corner of the Phu Phan range.

Insider Tip: Register with the rangers at the entrance before heading to Pha Suay — not just a formality, but useful if weather turns, since the cliff-edge trail has no barriers and gets slick after rain.

Cool season, November through February, gives the clearest views and the most comfortable hiking temperatures; expect the trails and cliff-face path to be uneven and rocky year-round, so wear sturdy shoes and carry your own water. There’s no food or shop at the entrance. A car is the practical way in — the drive through Tha Khantho town, then the final stretch to the park, isn’t well served by public transport.