If you go to the Mekong Delta I highly recommend Green Village Homestay in Can Tho. They are located out of town but there's enough to do for a few days (we rode their bicycles through the small villages to the sounds of children shouting hello! and took a tour to the floating market with Phoenix). It is a very unspoiled place.

Try and spend at least 2-3 days in the Mekong Delta.

It's a place that is still fairly untouristy as it's big so it's easy to escape the crowds.

If you want a small beach with few tourists and some local life then Qui Nhon is a nice alternative to the more popular beaches.

Hi Rella! I wrote multiple detailed posts about our two weeks trip to Vietnam, feel free to browse and decide for yourself where you'd like to go.

http://www.ooaworld.com/category/vietnam/

We went to Hanoi, spent a night in Halong Bay Vietnam, Hue, Mui Ne, Da Lat, Can Tho, Ho Chi Minh City - we didn't go to Sapa but wished we did!

There are many places to visit in Vietnam, with 3 weeks you can travel from North to South Hanoi, Sa Pa, in Halong you can take 3 days 2 nights tour with one night on boat and one night at Cật Ba is also beautiful place if you travel from July - Nov, you can meet local people, enjoy their daily life, see the beautiful rice terraces. In Central of Vietnam you can visit Hue, Hoi An, Danang Beach Resort. in the south with Mekong Delta, Mui Ne, Phu Quoc, Con Dao Islands more information at my company Indochina Best Travel