Koh Rong to Suong Drive: Stops, Time & Worth It?

The road between Koh Rong and Suong is a journey from Cambodia's southern coast to the eastern plains, a drive that takes roughly 9-10 hours and covers about 320 kilometers by land and sea. Surprisingly, the first leg is a ferry crossing from the island to Sihanoukville port, a 45-minute ride on the high-speed catamaran that runs twice daily. Once on the mainland, you'll traverse National Roads 4 and 7, passing through the capital Phnom Penh before heading east across the Mekong River.

The final stretch crosses the brand-new Neak Loeung Bridge over the Mekong, a key engineering feat that replaced the former ferry. As you approach Suong, the landscape transforms from urban sprawl to rice paddies and sugar palm groves, a hint of the rural richness that defines the region.

Driving this route offers a unique cross-section of Cambodia, but it's not without its challenges. The how to find the best stops and hidden gems between cities can elevate your trip from a mere transfer to an adventure.

The route meanders through three distinct geographical zones: the coastal fringe, the central floodplains, and the eastern plateau. Sihanoukville's port gives way to the freshwater estuaries of the Prey Nob river, then to dense rubber plantations around Kampong Thom. After Phnom Penh, the landscape opens into the vast rice bowl of the Mekong Delta, where seasonal floods nourish the paddies.

Local commerce thrives along the roadside: you'll see vendors selling grilled sun-dried fish at Srae Ambel, a famous rest stop west of Phnom Penh, and baskets of fragrant palm sugar in Skun, the spider capital. In Skun, a kitchen staple is deep-fried tarantulas, a unique delicacy that travelers can sample. Further east, Suong is known for its silk weaving villages, where you can watch artisans at wooden looms.

For a quick cultural detour, the ancient temple complex of Phnom Da stands 30 km north of the highway, but it's a day's adventure. More accessible is Wat Nokor in Kampong Cham, a 12th-century temple built from blocks of laterite and sandstone, a short detour that is well-signposted. The temple is often crowded with local picnickers, giving a slice of Cambodian life.

Road safety relies primarily on your own alertness. While NR4 is straight and wide, national roads are shared with slow-moving tractors and bicycles. Always wear seatbelts and avoid driving after dark, as street lighting is inconsistent and unlit trucks pose hazards. In case of breakdown, emergency numbers include 911 for police and 119 for fire, but English-speaking dispatch is rare.

For families, rest stops with playgrounds are scattered every 50-60 km. The most prominent is the 'KFC at Prey Veng River' near Kampong Som, but for a more local experience, 'Bos Sbov' water park just south of Suong offers pools and slides. However, be aware that on weekends these places can become packed, so plan a weekday stop for a quieter experience.

Fatigue is a real concern on the long drive. Each driver should take a 15-minute break every 2 hours. Two recommended rest areas are at Oudong (elephant camp and pagoda) and at the NR7/NR6 junction near Chlong, where roadside restaurants serve cold drinks. If you travel with a pet, note that the ferry allows pets in the open-air deck for a fee of 3,000 riel per pet. On the land leg, many restaurants have outdoor seating, but only a few have specific pet-friendly policies. It's best to carry a water bowl and a leash, as pets must be kept under control at all times.

Fuel stations are plentiful along NR4, with major brands like Caltex and Total operating 24/7 in Sihanoukville and Phnom Penh. However, once you leave Phnom Penh towards Suong, stations thin out; the last reliable Fuel is in Skun, 50 km before Suong. Diesel averages about 4,100 riel per liter, similar to gas prices in the capital. Payment is usually cash only, so plan to fill your tank before leaving the city.

Toll costs are minimal: NR4 has no tolls, and the Neak Loeung Bridge toll is 5,000 riel for a standard car. The bridge, inaugurated in 2015, cuts off a 40-minute ferry wait.

• Road quality: NR4 is a smooth, four-lane highway; NR7 from Phnom Penh to Suong is narrower but in good condition, with some rough patches near Kampong Cham.
• Traffic: Expect trucks and mopeds, though less congested than the capital.
• Driving style: Cambodians drive on the right; beware of sudden lane changes and livestock crossings.