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. Any type of smoking is prohibited in the apartment (guests can smoke on the balcony). It is also prohibited: noisy parties, the presence and accommodation of persons who were not declared at check-in (more than 4 people), the transfer of keys to third parties. To arrange check-in, guests must contact the property in advance for check-in instructions. Contact details can be found on the booking confirmation.