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. Smoking is allowed on the balcony, if it is available in the room, as well as at the entrance to the building. When making a reservation, guests are required to indicate their estimated time of arrival for handing over the keys, but no later than 2 hours before arrival. After making a reservation, guests should contact the apartments to clarify check-in details. Contact details can be found on the booking confirmation.