Siem Reap to Can Gio Drive: Full Route Guide

Crossing from Cambodia's ancient capital to Vietnam's coastal mangrove forest, this drive spans 1,100 kilometers and crosses two international borders. National Highway 6 (NR6) starts from Siem Reap, passing through Kampong Thom and Skun before Phnom Penh, where you'll take National Highway 1 (NR1) to the Bavet/Moc Bai border crossing. The route then links to Vietnam's QL22, which merges into Ho Chi Minh City's ring roads before QL50 takes you directly to Can Gio. Whether you're drawn by temple ruins or riverine ecosystems, this drive offers a unique cross-cultural adventure.

Driving time from Siem Reap to Can Gio is approximately 11-13 hours, excluding border procedures and breaks. Plan for full-day travel with an overnight stop in Phnom Penh. Roads are mostly two-lane highways with some sections under construction in Cambodia; Vietnam's QL22 is a national route with moderate traffic. how to find the best stops and hidden gems between cities can help you plan diversions.

• Fuel: Petrol stations are abundant every 20-30 km in Cambodia; in Vietnam, they are frequent along QL22.
• Costs: Expect fuel expenses of 4,000,000-5,000,000 KHR (approx. $1,000-1,250) for an average car, plus tolls (approx. 200,000 VND on Ho Chi Minh City expressways).
• Border: Bavet/Moc Bai is open 7 AM-10 PM; require a passport, vehicle permit, and travel insurance.
• Currency: Use US dollars or Cambodian riel in Cambodia; Vietnamese dong in Vietnam. Cards are rarely accepted at smaller stops.
• Accommodation: Phnom Penh offers a wide range; consider a stop in Ho Chi Minh City for a safer night drive alternative.

Infrastructure safety varies: Cambodian roads have been upgraded but lack street lighting in rural stretches; Vietnamese QL22 is well-maintained but has heavy motorcycle traffic. Drive defensively, use sidewalks as shoulders, and keep headlights on. For families, safe stops include the Angkor Wat complex, where restrooms and food courts are available, and the AEON Mall in Phnom Penh, which has children's play areas. Many restaurants in Vietnam offer high chairs.

• Pet-friendly: Some hotels in Phnom Penh and Ho Chi Minh City accept pets; check in advance.
• Rest zones: Use official rest stops along NR6, such as the one at Skuon, which has clean toilets and food stalls.
• Fatigue management: Take a break every 2 hours; use coffee stops at the many roadside cafes in Vietnam.
• Hidden off-route spots: The Preah Vihear temple complex (160 km north of the NR6) is a UNESCO World Heritage Site, though it adds significant driving time.

Culinary infrastructure side-notes: Along QL22, pho and banh mi stalls are ubiquitous; vegetarian options are common in Buddhist towns. For a unique taste, try the seafood in Can Gio, where mangrove crabs are a local specialty.

Laos-style limestone karsts emerge near Kampong Thom in Cambodia, while Vietnam's Mekong Delta presents flat, green paddy fields. Can Gio is a UNESCO Biosphere Reserve, noted for its 75,000 hectares of mangrove forest, where saltwater crocodiles inhabit the swamp. The drive passes through bustling market towns like Skun, famous for fried spiders, and Ben Luc in Vietnam, where fruit orchards offer seasonal plums and longans.

• Stop at Kampong Kdei to see the ancient Angkorian bridge spanning 80 meters.
• In Vietnam, the Cao Dai Temple at Tay Ninh, 90 km north of Ho Chi Minh City, offers a colorful cultural detour.
• Near Can Gio, the Rung Sac guerrilla base from the Vietnam War is now a quiet memorial park.

Climatic conditions include a tropical monsoon climate with two seasons: wet (May-October) and dry (November-April). The dry season offers clearer roads, while the wet season can cause localized flooding in low-lying areas near Can Gio. The best time to drive is early morning to avoid peak heat and traffic.