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. Front desk is open 24/7. A mandatory fee of RUB 400.00 per person is charged for registration of all foreign citizens. A baby cot (crib) is provided free of charge in all room categories for children under 3 years old. The cost of breakfast must be specified on the spot. The cost of an extra bed must be specified on the spot.