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Sam Pan Bok (Grand Canyon of Thailand)
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Sam Pan Bok (Grand Canyon of Thailand) is a remarkable feature of the geography and culture of Thailand. A section of the Mekong River that reveals thousands of hole-like rock formations during the dry season, creating a moon-like landscape. 'Sam Pan Bok' means '3000 holes'. Visible only during the dry season from November to June. A geological wonder created by river erosion. This landform shapes the topography of Thailand, from the northern mountains to the coastal plains along the Gulf of Thailand. Like many notable places in Thailand, it combines regional character with the legacy of the Chao Phraya, the Mekong and Buddhist tradition. Thus, this place contributes to the diverse profile of Thailand, between the Andaman coast, rice paddies and tropical forests.
- Location: Thailand
- Top sights: Tat Ton Waterfall · Pha Taem National Park · Lan Hin Taek
- Nearby: Ubon Ratchathani (68 km)
Best time to visit & climate
The most pleasant time to visit is Jan, Nov, Dec.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 24 | 27 | 29 | 30 | 29 | 27 | 26 | 26 | 26 | 25 | 25 | 24 |
| Rain mm | 5 | 5 | 31 | 62 | 146 | 173 | 293 | 297 | 262 | 104 | 23 | 12 |
📋 Practical info
Getting there
Typically reached by road from Ubon Ratchathani province; visitors usually drive to a designated drop-off point and then take a short walk or a local songthaew down to the riverbed.
Best season
Only accessible during the dry season, roughly between December and May, when the Mekong River's water levels drop significantly to reveal the expansive and fascinating rock formations.
Terrain & paths
The ground consists of a vast, uneven sandstone plateau filled with thousands of potholes and craters; walking requires constant attention as the rock surfaces can be slippery and jagged.
What to bring
Comfortable walking shoes with good grip are essential, along with a wide-brimmed hat, strong sunscreen, and plenty of water, as there is absolutely no shade on the open rock surface.
Parking
There is typically a designated parking area near the main entrance or visitor center where locals also offer transport services down to the actual rock formations for a small fee.
Safety
The intense heat during the day is the primary hazard; visitors must stay hydrated, avoid the edges of deep water channels, and be cautious of sudden drops and slippery algae on rocks.
Time needed
Exploring the extensive moon-like landscape usually takes about two to three hours, giving enough time to photograph the unique holes and take a short boat ride if available locally.
Geography
Facts
- A section of the Mekong River that reveals thousands of hole-like rock formations during the dry season, creating a moon-like landscape.
- Located within the Kingdom of Thailand.
- Shaped by the monsoon climate of Southeast Asia.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
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© OpenStreetMap contributors · OpenRouteService
Sights in the town Sam Pan Bok (Grand Canyon of Thailand) (8)
Sights nearby
Frequently asked questions
When is the best time to see Sam Pan Bok?
During the dry season (January-April) when the Mekong level is low.
Is it hot there?
Yes, it is very exposed, so bring sun protection and a hat.
How long does the visit take?
About 2 hours are enough to explore the rock formations.
Is there food available on-site?
There are some simple snack stalls near the entrance.
Is the place suitable for children?
Yes, kids love climbing the rocks, but supervision is important.
Sam Pan Bok (Grand Canyon of Thailand): where is it located?
Sam Pan Bok (Grand Canyon of Thailand) is located in Thailand.
Sam Pan Bok (Grand Canyon of Thailand): what is there to see?
Highlights include Tat Ton Waterfall, Pha Taem National Park, Lan Hin Taek.
Sam Pan Bok (Grand Canyon of Thailand): when is the best time to visit?
The most pleasant time to visit is Jan, Nov, Dec.
Sam Pan Bok (Grand Canyon of Thailand): why is it worth visiting?
Sam Pan Bok (Grand Canyon of Thailand) is a remarkable feature of the geography and culture of Thailand.
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