Explore/Thailand/TH 34/Sam Phan Bok & Pha Taem — Mekong Grand Canyon Circuit
THUbon Ratchathani, ThailandEasyPaved2-day trip

Sam Phan Bok & Pha Taem — Mekong Grand CanyonCircuit.

Distance
330 km
Duration
2 days
Climb
800 m
CloneClone in AppShareShare
R
Curated by Rider · Updated Aug 2026
Overview

Sam Phan Bok & Pha Taem — Mekong Grand Canyon Circuit.

A 2-day Isaan circuit from Ubon Ratchathani to Thailand's far eastern edge, where the Mun River meets the Mekong. Day one reaches the Pha Taem cliff and its 3,000-year-old rock paintings above the river; day two starts at dawn at Sam Phan Bok, the Grand Canyon of Siam — 3,000 water-carved potholes in a sandstone reef exposed only in the dry season. Flat, fast, nearly empty roads through the Isaan heartland.

Quick facts

SurfacePaved
Distance330 km
Days2
Total climb800 m
DifficultyEasy
Loading map...
Day-by-day

2 days, 2 moods.

A suggested split across 2 days with 5 waypoints to discover along the way.
DAY 01
Ubon Ratchathani → Khong Chiam
3 stops
Start
Ubon RatchathaniStart · Start in Ubon Ratchathani, eastern Isaan's laid-back capital. The highway east to the Mekong is flat, fast and almost empty.
Photo
Pha Taem CliffPhoto Spot · Sandstone cliff high above the Mekong with prehistoric rock paintings along the cliff base — fish traps, giant catfish and handprints painted 3,000 years ago. This is the first place in Thailand to see the sunrise.
Overnight
Khong ChiamOvernight · Overnight in Khong Chiam, Thailand's easternmost town, where the blue Mun River meets the brown Mekong — Maenam Song Si, the Two-Colour River. Riverside fish restaurants at sunset.
DAY 02
Sam Phan Bok → Ubon Ratchathani
2 stops
Scenic
Sam Phan BokScenic Point · The Grand Canyon of Siam — 3,000 water-carved potholes in a Mekong sandstone reef. Exposed only in the dry season (Nov–May); arrive at dawn when the rock glows orange and the heat is still bearable.
End
Ubon RatchathaniEnd · Return to Ubon along the river road. Finish with kai yang and som tam — this is the Isaan grilled-chicken heartland.

More routes in Thailand

Doi Tung — Chiang Rai to the Northern Border via the Royal MountainTH 57 · 130 kmDoi Mae Salong — Chiang Rai to Santikhiri Tea MountainTH 57 · 150 kmDoi Suthep & Doi Pui — Chiang Mai's Sacred MountainTH 50 · 55 kmKrabi to Koh Lanta — Andaman Island CrossingTH 81 · 210 kmChaloem Burapha Chonlathit — Chanthaburi to Trat Coastal RoadTH 22 · 160 kmPhu Thap Boek — 111 Bends to Thailand's Cabbage MountainTH 67 · 110 km

Save this ride. Open the app.

Clone it to your planner, customize dates and stops, then ride. All free.

Open in MotoVault
Navigate this route with GPS
Open