Hi there,
My favourite palces to vacation in DR is Sosua and Cabarete on the North coast.
Sosua is morelay back filled with ex-pats, that made it their home and Cabarete has a much younger crowd of party folksand surfers.
Both have wonderful beaches.
If you need more help, just drop me an email at:
rimma@sunnyvillaholidays.com and I will be glad to help out, as I lived in Sosua for a while and rent properties in both places.
Have a great trip to DR and I am sure you will enjoy yourselves no matter where you go .
Happy travels