In Sulina, a hotel needs to provide a certain level of upscale conveniences to earn a 5-star rating. These can include on-site gyms, gourmet restaurants, saunas and spas, premium bedding, luxury bathroom products and more. What also sets 5-star hotels apart is their guest-centric standard of service. You can look forward to things like in-room massages, nightly turn-down services and concierge services. Some may also offer thoughtful touches such as a welcome gift.