I'm trying to pick a hotel for Christmas week. We have never been to DR and would like some help with regards to beaches and location. Are Riu and Barcelo located in the same area? Are the beaches , Bavaro/ arena gorda/Macao close to each other? Is one beach better than another. We are 2 adults and 2 young adults. We (older) like to walk the beach but the younger adults are interested in nightlife...not gambling. Any thoughts????