Im living in Japan with my family and a 4 year old baby, and i have just got home from 3 weeks holiday in Vietnam and Cambodia. The country is great, the scenery is lovely and the cultural things you see will amaze you immediately. I liked Danang Beach in the center and Hoi An and Hue is really impressed me. Halong Bay is just amazing, despite being so touristy but it worth your all minutes in there. Sapa was awesome as well, the tribal people with lovely colorful outfits and the special rice wine was really a good memory for me, we took a motorbike trip up to the mountains and it was brilliant experience. Avoid shopping in touristy area since the price is higher and they always ask you to pay more (similar to many places ive been). The tour operator / agency we contacted was Hamid on http://www.vietnameseprivatetours.com which id like to recommend his speedy and reliable service. Cheers