Rethymnon old port was of great strategic importance during the Venetian period. It was only able to accommodate small ships. From 1300 until today, the Venetian port has undergone numerous constructions. The 1618 wall that surrounds the port from the east is restored today with some recent interventions and additions. The original lighthouse was constructed during the Turkish period and was later replaced by another one. The building on the southeast part of the port was constructed in 1931 and functioned as a customs office. On the same location it is estimated that there was a quarantine house during the Venetian period. The vaulted spaces on the two or three-floor buildings at the port have been transformed to little and picturesque fish taverns, where visitors can enjoy the secrets of the Cretan cuisine.