Going into your pri­vate taxi from phnom penh to Bat­tam­bang then spend few hours in the town of Bat­tam­bang after that depar­ture straight from the the town to  siem reap. Or ear­ly morn­ing, leav­ing from a hotel loca­tion in Siem Reap to Bat­tam­bang town then pass­ing the town for Phnom Penh city.   It’s a one day trip and also one way dri­ve, straight on nation­al num­ber 5 with­in 10 hours dri­ver Price for the jour­ney is cost 199 usd for 2 people