Trat to Samraong: Cross-Border Road Trip Guide

Trat and Samraong sit on opposite sides of the Thai-Cambodian border, connected by a stretch of road that is less traveled than the main Bangkok-to-Siem Reap corridor, yet rich in quiet landscapes and cross-cultural texture.

The journey begins in Thailand's easternmost province, a region known for its islands and orchards, and ends in a Cambodian town that serves as a gateway to the northern plains. The driving distance is roughly 180 kilometers, with a typical travel time of 3 to 4 hours, depending on border crossing and road conditions.

After leaving Trat, the landscape transitions from coastal plains and rubber plantations to the forested foothills of the Cardamom Mountains, which stretch into Cambodia. The Thai side is dominated by fruit orchards, particularly durian and rambutan, while the Cambodian side offers views of dense jungle and seasonal rivers.

Crossing into Cambodia, you quickly encounter a different economic rhythm: roadside stalls sell local snacks, hammocks, and handicrafts, often clustered at the few villages along Route 48. Markets appear small and sporadic, so the best opportunity for local commerce is at the border market near Cham Yeam, where both Thais and Cambodians trade.

UNESCO World Heritage Sites are not on this immediate route; the closest is the ancient temple complex of a later period, but you can visit a minor Pre-Angkorian temple, Banteay Chhmar, by taking a short detour from Samraong, roughly 30 kilometers to the south. The site is unrestored and off the beaten path, offering a raw historical experience.

Local commerce along the road includes small souvenir shops and fruit vendors, but larger commercial centers are scarce until Samraong, where you'll find a few markets and grocery stores.

The main route follows Thai Highway 318 from Trat to the border checkpoint at Hat Lek (Klong Yai district), crosses into Cambodia at Cham Yeam (Koh Kong province), and continues on National Road 48 to Samraong (Oddar Meanchey province). The road is paved throughout, but segments in Cambodia have deteriorated surfaces and narrow lanes.

Border formalities typically require a passport with at least six months validity, and visa-on-arrival is available for many nationalities for $30 (USD). Vehicle entry permits are required for driving into Cambodia, obtainable at the border with vehicle registration and insurance documents.

• Fuel stations are sparse after the border; fill up in Trat or at the large station just before Hat Lek.
• Disel prices in Cambodia are slightly higher than Thailand, so plan your budget accordingly.
• ATM availability is limited beyond the border towns; carry cash in US dollars or Cambodian riel.

Should you want to find more interesting detours along the way, check out this guide on how to find the best stops and hidden gems between cities.

Road quality varies: the Thai portion is smooth and well-marked, while Cambodian sections may have potholes, especially during the rainy season (May–October). Speed limits are enforced on the Thai side, but Cambodian stretches require vigilant driving due to occasional animals on the road and limited lighting after dark.

For families, the journey is manageable with young children if you plan breaks. Rest stops are few, but you'll find the best amenities at the border, including clean toilets and simple restaurants at Cham Yeam. In Thailand, the area near Klong Yai offers a few roadside eateries.

Pet owners should note that carrying a pet across the border requires a veterinary health certificate and possibly an import permit, so check with the Cambodian embassy beforehand. Moreover, pets should stay inside the vehicle at border points.

Fatigue management is crucial on this 3–4 hour drive, especially after border procedures. Plan to stop every hour: the town of Khlong Yai on the Thai side and the village of Trapeang Rung on the Cambodian side both have simple rest areas with shade and drinks.

Hidden off-route spots include the mangrove boardwalks near the Trat River estuary, a short detour from the highway, and the remote beaches of Koh Kong Island, accessible by ferry from Cham Yeam, but these require extra time.