Daily cost: £30.
Bargain: It is still a developing country, home to a flourishing boutique hotel scene. Apart from mini-bar bills, everything you buy will cost a fraction of what you pay at home, from taxis to drinks to private guides.
Why visit: Home to one of the great wonders of the world - Angkor Wat - Siem Reap has a whole host of tiny temples that are free to visit. When you get tired of sightseeing, head to the relatively quiet beaches in Sihanoukville. On some sandy stretches, you can drink beer and eat freshly grilled seafood from thatch-roofed restaurants for a few pounds.