The requirements for documents needed at check-in depend on the type of accommodation and the applicable regulations. For hotels and other accommodation facilities, a Russian passport, an international passport, or a driver’s license may be accepted. For apartments, serviced apartments, and other properties where check-in or contract conclusion is carried out according to the rules of a specific property, the required documents are determined by the property itself. The deposit is refunded after checking and cleaning the flat. The flat has round-the-clock check-in. If guests pre-book and make a prepayment, there is no additional charge for late check-in or early check-out. Guests should indicate the number of guests when booking. Regardless of age, the child is considered a separate guest. A short-term rental agreement is concluded with the guests.