I will be heading down to Puerta Plata January 15th for a one week stay with 5 other single female friends. We're planning on having an absolute blast!! We range in age from 34 to 48 and would like some recommendations on places to go. We are looking for somewhat more mature places, i.e. no interest in seeing a bunch of Brittany Spears/Backstreet Boys wannabes. Any recommendations?