By Road Access to [[Koh Kong]] Province when you travel from Thailand. The Border Crossing Checkpoint is at [[Koh Kong]] (Cambodia) /Hat Lek (Thailand) Open from 7:00 -17:00. By Bus and Taxi It is always traveled by backpackers; there are many comfortable means of getting to Bangkok and [[Phnom Penh]] via Koh Kong. From Bangkok to Phnom Penh: 1.) Take a bus to Trat Province (Thailand). 2.) Take a Songthaw to Klong Yai, takes about 2 hours 3.) Change to another Songthaw to Hat ...