Cambodia
Coach / Cars
The three main routes to Phnom Penh (from Siem Reap, Sisophon, and Sihanoukville) are all sealed and in good condition. National Route #7 from Stung Treng to Phnom Penh (Skuon) is in good condition, paved between Kratie and Phnom Penh, partly paved and partly gravel between Stung Treng and Kratie, but well maintained, even in the wet season.
Air
There are two domestic routes: Phnom Penh - Siem Reap operated by Siem Reap Airways and Phnom Penh - Banlung: operated by PMT Air.
Train
The only passenger train in Cambodia travels very slowly from Phnom Penh to Battambang every other day, and back again on the alternate days.
Boat
Ferries operate seasonally along many of the major rivers. Major routes include Phnom Penh to Siem Reap, Siem Reap to Battambang, and Sihanoukville to Koh Kong. Boats are slower than road transport.
Various
There are no direct bus services from Thailand, but there are good Thai bus services to the main border crossings. On the Cambodian side, more basic and less frequent bus services are available from Poipet and Koh Kong. There are direct bus services from Ho Chi Minh City to Phnom Penh.

