Make sure that your Viet Nam visa states Lao Bao as the exit point. Mine didn't (agent in Pnom Penh applied on my behalf) and I had to turn back and bribe an immigration officer in Dong Ha to change my exit point. Too much hassle to mention but I got out in the end.
Once you get through it's a long lumpy road and getting to Thailand after that is a wonderful experience.
#2 Guernseystu has been a member since 10/7/2007. Posts: 108