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. The hotel has three buildings: "Arena" (3 stars), "Salut" (4 stars) and "Olympus" (4 stars). The Arena building is located at a different address: Sochi, Shosseinaya Street, 26. To check in, the following documents are required: - certificate of lack of contact with probable patients at least 14 days before the date of departure; - a sanatorium-resort card of the established sample no more than two months old (form 072 / y) and for children if their treatment is planned; - passport or other identity document; - for pensioners - a pension certificate or a certificate of the appointment of a pension; - if available - voucher (direction or power of attorney from the organization to receive vouchers); - compulsory medical insurance policy; - an exchange card is required for pregnant women; - for children - a birth certificate, an analysis for enterobiasis and a dermatologist's conclusion about the absence of infectious skin diseases. Children are admitted to the sanatorium from any age; treatment is prescribed for children from 4 years old.