There are direct buses from Phnom Penh to Sihanoukville operated by different private bus agencies. Giant Ibis, Virak Bunthan, Capitol tours are major players. The distance of around 220 kilometres between both the cities is covered in 4 hours. As soon as you come out of the jam-packed roads of the city of Phnom Penh, the sprawling countryside of Cambodia takes you to another world. I took the ‘Cambodia Post’ bus from Phnom Penh to Sihanoukville.
