Choam Sa Gnam is a border crossing along Thai-Cambodia borders at Northern part of Siem Reap. Choam Sa Gnam is linked to help tourists travel from Lao-Thai border traveling through Ubon Rachanthani in Thailand. This trip Angkor Grand Adventure Tours can tailor sightseeing to visit Ta Mok house during Khmer Rouge (Pol Pot) regime. Overnight at hotel in Anglong Veng. Next morning, continue trip to Siem Reap, after traveling 4 hours.