Tourists with no fixed address in a town may receive their letters from the post office through a

When tourists are traveling and have no fixed address or permanent residence in a town, they can receive their letters or packages by using the service of poste restante. Poste restante is a service provided by the post office, which holds the mail until the recipient collects it. The recipient needs to show identification when collecting the mail, and they can collect it during the post office's working hours. This service is particularly useful for tourists who are on the move and do not have a permanent address in a particular town.