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. A prepayment of the cost of 1 night staying is required. The prepayment is not refundable when the booking is canceled less than 3 days before the arrival date. Early check-in and late check-out are possible in the presence of free apartments, a surcharge of 50% of the daily cost is charged.