We have been traveling a bit to see different spots around Mui Ne. This one is called Phan Rang and is approx. 4 hrs north of Mui Ne. Id say that does qualify as a good learning spot but be prepared for small kites.
Only 45 minutes north from Mui Ne we discovered a beautiful kite spot right in between the mainland and a small island called Turtle Island (or also Lao Island).
A sandbar in between the island and the coast makes this a flatwater spot with some very sweet waves. So I strapped on the Gopro on my helmet and made this little video.