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. It is necessary during the day to make an advance payment in the amount of the cost of 3 nights. The possibility of cancellation depends on the booked fare (30 days or non-refundable). Children from 0 to 3 years are provided with a free cot, except for the categories double room, triple standard and comfort.