📝 Written 2 Jul 2026 · ✅ Fact-checked 3 Jul 2026 · prices and schedules can change — check with the operator before booking
If you're visiting Sisaket and want a natural attraction with some history woven in, Pha Mo I Daeng is a name that comes up often. That's because it combines two things in one place — a tall cliff overlooking a vast plain stretching to the horizon, and an ancient bas-relief carved into the cliff face hundreds of years ago. The viewpoint sits within Khao Phra Wihan National Park on the Thai side, along the Dangrek mountain range, which forms both a watershed ridge and the Thailand-Cambodia border.
Most visitors come to Pha Mo I Daeng with a similar goal: stand at the cliff's edge to take in the view, walk down the stairs to see the bas-relief carved beneath the rim, and follow the nature trail to the twin stupas. On this page, we'll review the experience in depth — both what impresses visitors and what you should know before going. The key point to stress upfront is that Pha Mo I Daeng sits right on the border. The situation and area openings/closures can change over time, so before planning a trip you should always check the latest situation and official announcements from the park or relevant authorities.
Pha Mo I Daeng (Cliff Viewpoint · Bas-Relief · Twin Stupas)
From the car park, the main path leads to the edge of the cliff, a wide rock platform looking out over the plains stretching to the horizon below. This stretch of cliff is reddish sandstone, which is how it got the name "Pha Mo I Daeng" (Red-Faced Cliff). This is the main viewpoint where most people take photos. On some mornings during the rainy season there's a chance of seeing a sea of mist floating above the plain below, and in the evening flocks of bats fly out from nearby caves as the sun sets.
Walking down the stairs from the cliff's edge a little further brings you to the bas-relief carving, carved into the cliff wall beneath the rim — figures and patterns that archaeologists believe predate the construction of Prasat Khao Phra Wihan (Preah Vihear Temple). There are information signs to read along the way. Not far off is a nature trail leading to the twin stupas, ancient sandstone structures with square bases and rounded tops, standing side by side — another spot visitors stop to see along the route. Both the carving and the twin stupas mean Pha Mo I Daeng isn't just a viewpoint, but a site with historical traces to explore too.
Based on real reviews across multiple platforms, what visitors consistently praise is the wide-open cliff view, the peaceful atmosphere, and being able to see both the bas-relief and the twin stupas in one place. What you should be prepared for is that Pha Mo I Daeng sits right on the border, and the situation and area openings/closures can change over time, so you must check the situation and official announcements before every visit. It's also quite far from Sisaket town, the road up is hilly, and midday sun can be quite strong on the rock platform by the cliff, so plan your transport and sun protection accordingly.
- A wide-open cliff view looking out over the plains to the horizon, consistently praised across many reviews
- A genuine ancient bas-relief carving to see, cut into the cliff face beneath the rim
- Several things to see in one area — the viewpoint, the carving, and the twin stupas via the nature trail
- A peaceful atmosphere, with a chance of a sea of mist on rainy-season mornings and bats flying out at dusk
- Sits right on the border, so you must check the situation and official announcements before every visit; the area can be closed temporarily
- Far from Sisaket town, with a hilly access road — a private vehicle is almost essential, plus a park entrance fee
- Strong midday sun on the rock platform by the cliff with little shade, and a fair amount of stair climbing
💡 Know Before You Go to Pha Mo I Daeng
Pha Mo I Daeng sits right on the border. The situation and area openings/closures can change over time, so before every trip check the latest situation and any announcements from the park or authorities, and keep a backup plan ready.
Don't skip walking down the stairs from the cliff's edge to see the ancient bas-relief carved into the rock face, and follow the nature trail to the twin stupas, ancient sandstone structures standing side by side. These two spots are the historical highlights of the site.
The viewpoint faces out over the plain below, making it a great spot for sunrise and morning light. On some rainy-season mornings there's a chance of seeing a sea of mist floating above the plain, while in the evening flocks of bats fly out from nearby caves.
You'll need to climb stairs and walk on the rocky platform by the cliff, so wear comfortable shoes with good grip. Bring a hat, sunglasses, sunscreen, and drinking water, since midday sun is strong and shade is limited.
Book Trips to Sisaket and the Kantharalak Area
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Where to Stay for Your Sisaket Trip?
Pha Mo I Daeng is far from town, so many visitors choose to stay in Sisaket city or near Kantharalak and drive over in the morning. Compare prices across multiple sites here.
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