It doesn't matter where in DR you are, you can be sure of the fact that there will always be a beach that is worth your while. Here are some that you could opt from... Boca Chica Beach (Santo Domingo), beaches on Catalina island, Sosua beach and Cabarete beach (Puerto Plata), Bávaro, Uvero Alto, Cabeza de Toro, and Boca de Yuma (all in Punta Cana).