As tourism slowly resumes around the world, many nations are still reluctant to open their borders fully – with Cambodia imposing perhaps the toughest entry requirements of any country.
The south-east Asian country is popular with backpackers, and most renowned for the Unesco-listed temple complex at Angkor Wat.
According to the latest Foreign Office bulletin on Cambodia, foreign travellers must pay a $3,000 (£2,400) deposit for “Covid-19 service charges” at the airport upon arrival.