Positano writes: Positano Ristorante Italiano has been owned and operated by the Traettino family since 1977 in Bethesda, MD outside Washington, DC. Positano is a full-service Italian restaurant serving lunch and dinner seven days per week, each week, all year. We don't close in the afternoon. We are open all day. We also offer six separate private dining rooms for rehearsal dinner sites, wedding reception sites, bar mitzvah sites, bat mitzvah sites, holiday parties.