In Diu, a hotel must offer a specific number of upscale conveniences to be rated 5 stars. These may include on-site gyms, gourmet restaurants, saunas and spas, premium bedding, luxury toiletries and more. What also sets 5-star hotels apart is their outstanding service. You can look forward to things like concierge services, in-room massages and nightly turn-down services. Some may also offer thoughtful touches such as welcome gifts.