Some of the best adults only all inclusive resorts in Punta Cana are: Secrets Cap Cana Resort & Spa - Traveler rating: /5 Iberostar Grand Bavaro - Traveler rating: /5. The 9 Best Adults-Only All-Inclusive Resorts in Punta Cana 1. Barcelo Bavaro Beach. Rooms with private sundecks and ocean views make this hip adults-only resort the ultimate 2. Luxury Bahia Principe Ambar. Beach bars, a nightclub, and a private beach make this Punta Cana resort on Playa Arena.