I know many tourists will say that beaches of North Vietnam are less attractive than the South one. But in my point of view I saw the differences of beauty in each of them.
Con Vanh is 30 kms from Thai Binh city. It sounds familiar to local people than tourists. In the hot summer of July, they took entire family here to drown themselves into cool water. Adults drinking beer and children playing around with waves and sand.
We didn't plan to visit here until my dad suggested.
That was a great experience with my beloved family!