Our Route...

Here is a map I drew of the countries we visited.

And here is the order we eventually did it (we had planned everything out in advance but, as you shall see we stayed extra in one spot and left early in another):

1.) Bangkok (Thailand)
2.) Luang Prabang (Laos)
3.) Siem Reap (Cambodia)
4.) Phnom Penh (Cambodia)
5.) Kampot (Cambodia)
6.) Saigon, aka Ho Chi Minh City (Vietnam)
7.) Hoi An (Vietnam)
8.) Hanoi (Vietnam)
9.) Halong Bay (Vietnam)
10.) Bangkok (Thailand)
11.) Hong Kong (SAR, China)
12.) Macau (SAR, China)