"Sa Dec and then headed north to the Cambodian border"
Sa Dec is on the Mekong river just South and West of Saigon and the river does run North from Sa Dec to the border. There is a small run of the river that seems to run with the VN / Cambodia border. See this map: http://www.lib.utexas.edu/maps/middle_east_and_asia/vietnam_pol92.jpg
I studied this for a time and have come to the conclusion that there is a VN / Cambodia border with a Mekong river between them North of Sa Dec.
Thanks for the map link and info. See post 29. Any info on this?
I agree. But, I think the point is moot because Kerry has already admitted he was not in Cambodia, Chrismas 1968.
As for later dates, the details needed are the route taken, the date (both because at some points in time, the river was under blockade), and whether he was in a PCF or some other craft.