Siem Reap (REP) 4 km/2 miles W of Angkor Wat. Moto US$1. US$5 to Angkor Wat. 20-30 mins to town. This price is set by the government and is apparently not negociable. Most hotels offer free transfers if you arrange in advance. www.cambodia-airports.com Sihanoukville (KOS): Departure tax is payable at the airport counters on departure. 15 km/9 Miles E of the city. Sihanoukville (KOS):