On reading about the POJ I expect to spend at least a day (and likely 2days) visiting the sites as a friend of mine taught in that region before the VN war "era". And told me some stories from the late 50s ...
That said, the next stop will be crossing into VN and visiting Dien Bien Phu. In reading I cannot quite figure out how to make that journey by bus. A marathon is not necessary and I would like the option of taking 2 days to get from POJ to DBP. I have my visa for entering VN by land or ???
Any suggestions for doing it in: a) 1 day, and b) 2 days.