Tiger Air flies from Singapore to Siem Reap three times a week. On Tuesday, Thursday and Sunday. Leaving on a Tuesday, I felt returning on Thursday would make the trip too tight. Returning on Sunday would mean too many days of temples in Siem Reap, and would be too short to add a side trip to Phnom Penh. So I gave myself a whole week and decided to go to Battambang instead over Phnom Penh, since PP is a larger city and easier to get to with more flight options.
So Day 5 saw me get on a bus to Battambang, the second largest city in Cambodia. Siem Reap sits between these two cities. Battambang sort of to its west or left of the main highway and PP to the east, or right of the main national highway 6.