Boats are also available from Phnom Penh to Siem Reap, a route popular with travellers. Due to the present rise in crime, inter-city boat travel should be restricted to the fast boats to Kompong Cham and Kratie. Some rail services operate, but foreigners are advised not to use them at present. There are plans to restore the international service to Bangkok, but a great deal of repair work is needed. Traffic drives on the right.
Most roads are in poor condition, although the highway to Vietnam is open.
It is possible to drive from Phnom Penh to Ho Chi Minh City in a day but there are formalities involved regarding the use of the same vehicle all the way. Care should be taken while driving as Cambodian drivers are prone to recklessness and accidents are relatively frequent. The safety of road travel outside urban areas varies greatly from region to region. If travel is undertaken in vehicle convoy during daylight hours only, potential risks can be reduced. Reliable information about security should be obtained before considering extensive road journeys.