Upon arrival, Russian citizens must provide the original (not a copy) of one of the following documents: a valid Russian domestic or international passport, or driver's license. According to the contract concluded upon check-in, the facility is rented exclusively to persons over 30 years of age. If at the time of check-in the persons being checked in are under 30 years of age, or the number of people being checked in is greater than indicated in the reservation, check-in will be denied.