Day 55 21 jan We depart Ho Chi Minh City today on coach... It's the type of coach that used to noisily thunder past us all the time when we were on the bike and it's not long that the comfy seat has lost its appeal and we both wish we were still on the bike.... Once we get out of Ho Chi Minh City and free from the heavy city traffic it becomes easy to cover ground quickly and it's not long before we are standing at the Vietnam and Cambodian boarder.... This i...