A Guide to the O'Smach Border Crossing
Discover the Surprising Casino Town in Oddar Meanchey
What is O'Smach?
O'Smach is an international border checkpoint in Cambodia's Oddar Meanchey province. It connects with the **Chong Chom** checkpoint in Thailand. Because casinos are popular in Cambodia but not legal in Thailand, O'Smach has developed into a bustling casino town catering primarily to Thai visitors, creating a unique and somewhat surreal atmosphere in an otherwise remote area.
While not a typical tourist destination, the O'Smach border area offers a fascinating glimpse into the cross-border economy and a different side of Cambodian life. It can be a surprisingly interesting stop for those exploring the country's northern provinces or planning an overland trip to Thailand.
The Main Draws
Casinos & Hotels
The skyline is dominated by several large casino-resort complexes. Even if you don't gamble, the sheer scale of these modern buildings in a remote location is a sight to behold.
The Border Market
Like many border towns, O'Smach has a bustling market area where you can find a mix of Cambodian and Thai goods. It's a great place to wander, take photos, and grab a snack like a fresh coconut.
The Checkpoint Itself
There's a certain energy to observing the flow of people and goods across an international border. You can walk right up to the Cambodian immigration building without needing to cross.
A Visitor's Guide
Getting There
O'Smach is located in Samraong Municipality, Oddar Meanchey. The journey from Siem Reap is approximately **130 km and takes 2.5 to 3 hours** by car or motorbike on well-paved roads.
Costs & Crossing
It is **free to visit** the Cambodian side of the border town (the casinos, market, etc.). You only need to pay for a visa and go through immigration if you intend to physically cross into Thailand. Remember to check the latest visa requirements for your nationality if you plan to cross.
The Vibe
As you noted, the area can feel surprisingly quiet, especially during the day on weekdays. The main activity is centered inside the casinos. It's a unique place for a short visit to see something different from the usual tourist trail.
