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. To arrange check-in, guests must contact the property via messenger in advance for check-in instructions. Contact details can be found on the booking confirmation. It is possible to stay with a pet for an additional fee and subject to a double security deposit. Accommodation with pets is possible only with small dogs. For quadruple occupancy and payment at the rate for 4 guests, only two double beds are made. Extra bed linen is available upon request at an additional cost. The need for an additional set of bed linen should be informed in advance. Contact information is on the booking confirmation. For an additional fee, the following are provided: a high chair, a crib and a cane stroller. A security deposit of RUB 10000.00 is required if guests are under the age of 20 or are checking in with pets. To check in, guests must provide a copy of their passport and sign an offer agreement. Remote check-in is available after full payment for the stay and the security deposit have been made.