In Pongnae, a hotel must provide a certain level of upscale amenities to be designated 5 stars. These can include on-site gyms, saunas and spas, gourmet restaurants, premium bedding, luxury toiletries and more. What also sets 5-star hotels apart is their outstanding service. You'll enjoy things like nightly turn-down services, concierge services and in-room massages. Some may also offer extra touches such as welcome gifts.