In Rio Grande, a hotel needs to offer a certain amount of upscale features to be rated 5 stars. These can include on-site gyms, spas and saunas, gourmet restaurants, premium bedding, luxury bathroom products and more. What also sets 5-star hotels apart is their exceptional service. You'll enjoy things like in-room massages, nightly turn-down services and concierge services. Some may also offer extra touches like a welcome gift.