In Boulogne, a hotel needs to provide a certain number of high-end conveniences to be designated 5 stars. These may include saunas and spas, on-site gyms, gourmet restaurants, luxury bathroom products, premium bedding and more. What also sets 5-star hotels apart is their outstanding standard of service. You can look forward to things like nightly turn-down services, concierge services and in-room massages. Some may even offer additional touches like welcome gifts.