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. When booking, guests need to contact the property within 24 hours for check-in instructions. Contact details are provided in the booking confirmation. Pets are allowed on a case-by-case basis. The deposit may be increased depending on the number of guests staying.