Our trip too Vietnam was amazing. We took a mountain tour to Cao Son and Bac Ha with my friends. We enjoyed much the time with Cao Son Ecolodge (www.caoson-eco-lodge.com). The forest trail in Lapantan was awesome with some caves. Mr Hoang, our tour guide introduced us much about the local culture and beautiful tradition. Moreover, the people in Sapa was very lovely. The are part of our great time here. They smile to welcome us every time we dropped into their house. The people in the remote area seems more friendly with invitation for lunch. We did a homestay with Tay tribes in Ban Ho which is impressive with musical show.
I do think Vietnam could be a good destination for something unique