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. Guests must contact the check-in manager in advance to arrange a check-in and key collection time. Contact information is provided in the booking confirmation. Check-in is available around the clock. Guests under the age of 23 are required to pay a deposit of RUB 3000.00 per room for the entire duration of their stay, payable via bank transfer in accordance with the agreement signed upon check-in.