Pha Diao Dai Viewpoint
ผาเดียวดาย
A cliff viewpoint near Khao Yai’s highest point. A short forest trail leads to the edge, overlooking layered primeval forest, with cloud seas and sunrises on clear days.
Pha Diao Dai, or Lonely Cliff, lies in the southern part of Khao Yai National Park, near Khao Khiao (Green Mountain), at an elevation of about 1,100 meters. It is one of the highest areas that vehicles can reach. From a roadside parking area, a loop nature trail of about 500 meters winds through mountain forest thick with moss and ferns, leading to a wooden platform at the cliff edge. From there the view stretches over the forest to distant ridges. On cool-season mornings, clouds often roll across the forest, making it one of the park’s best sunrise spots. Nearby are the Khao Khiao viewpoint and a military radar station, and on clear days the view opens up even further. Tips: arrive about 30 minutes before sunrise, when temperatures can drop to around 10°C, so bring a jacket. You can combine it with Haew Narok Waterfall for a half-day southern-route trip. Getting there: it is about 30 minutes’ drive south from the visitor center. Note: do not approach the cliff edge where there are no railings. Mountain roads are foggy in the early morning, so drive slowly and watch for wildlife.
Opening hours
06:00–18:00 (follows park hours)
Nearby sights
- Pha Kluai Mai Waterfall
- Haew Suwat Waterfall
- Haew Narok Waterfall
- Khao Yai National Park
- Nong Phak Chi Wildlife Observation Tower
- Sarika Waterfall
- Khao Luk Chang Bat Cave
- Palio Khao Yai