Trat to Sihanoukville Road Trip Guide: Stops, Drive Time, and Tips

The road from Trat in Thailand to Sihanoukville in Cambodia crosses the only land border between the two countries at Hat Lek and Cham Yeam. The journey is about 300 kilometers, but the drive typically takes seven to nine hours due to border formalities and road conditions. What many travelers don't realize is that this route passes through the Cardamom Mountains, one of Southeast Asia's last significant lowland rainforests, home to rare species like the Siamese crocodile. The border crossing is on the Gulf of Thailand, and the coastal breeze can offer some relief from the tropical heat.

The scenery changes dramatically from the flat, agricultural plains of Trat to the jungle-clad mountains of the Cardamom range. Along the way, you'll cross several rivers and see cascading waterfalls, especially during the rainy season (May to October). The route passes near Kirirom National Park, one of Cambodia's most accessible parks, which is a great spot for a short hike or picnic. The road also hugs the coast near Koh Kong, offering glimpses of mangroves and the beach at Koh Kong island.

In terms of local commerce, roadside stalls sell tropical fruits and snacks, especially near the border and in smaller towns. The border town of Cham Yeam has a bustling market where you can stock up on Cambodian crafts and souvenirs. Some travelers stop at the Peam Krasop Wildlife Sanctuary, a mangrove forest known for its birdlife, but be aware that access requires a boat trip.

On the Thai side, National Highway 318 (Thailand) is in good condition, but on the Cambodian side, National Road 48 is narrow and winding, with many potholes. Expect frequent truck traffic and occasional construction. There are several checkpoints where it's worth having your documents accessible. As for fuel, petrol stations are scarce once you leave the border area, especially along the remote stretches of the Cardamoms. It's wise to fill up in Trat and again in Koh Kong, the first major town after the border.

• Fuel costs: Petrol in Cambodia is slightly cheaper than in Thailand, but availability is limited.
• Currency: Thai baht is not accepted in Cambodia; use US dollars or Cambodian riel.
• Road quality: Thai side: good; Cambodian side: fair with poor sections.
• Distance between fuel stops: Approximately every 100 km after the border, but plan carefully.

The Cambodian section has a higher accident rate, mostly due to reckless driving and poor visibility at night. It's essential to avoid driving after dark, as many vehicles have no lights and livestock often crosses the road. For families, the route is challenging but manageable with regular breaks. Children will need entertainment, and there are few playgrounds. Pet-friendly options are limited; check with hotels in advance, and be aware that pets must have a health certificate and vaccination records.

When fatigue sets in, there are several rest stops and basic guesthouses along the way, particularly around Koh Kong and in the small town of Andoung Teuk. However, these may be basic. For a higher level of comfort, consider staying overnight in Koh Kong or at the Severn Coast resort area, about halfway. If you're looking for tips on how to find the best stops and hidden gems between cities, that guide can help you plan more creative breaks.