North Beach has no beach. The shallow cove that named the district was filled with sand and ship ballast in the 1860s, pushing the waterfront half a mile east and leaving a dense grid of narrow streets pinned between Telegraph Hill and Russian Hill. Genoese, Sicilian and Lucchese families settled that grid. Their trade was food, and that inheritance is why north beach little italy food tour tours still trace the same six or seven blocks rather than the wider city. The addresses are older than most of California's restaurant industry. Molinari Delicatessen has cured salumi on Columbus Avenue since 1896. Liguria Bakery, at the corner of Stockton and Filbert, has baked essentially one product — focaccia — since 1911, and closes when the trays are empty. Victoria Pastry Company opened in 1914 and still builds its St. Honoré cake to a formula older than the Golden Gate Bridge. Caffè Trieste, opened in 1956, is widely credited as the first espresso house on the West Coast; its back room ran opera on Saturday afternoons long before espresso became an American habit. Geometry shapes the neighbourhood. Columbus Avenue cuts a diagonal across the standard street grid, so corners open at odd angles and sightlines end on landmarks: the twin spires of Saints Peter and Paul Church above Washington Square, the fluted concrete shaft of Coit Tower on Telegraph Hill, the green-and-yellow storefront of City Lights Booksellers at Jack Kerouac Alley. The buildings are low, mostly three and four storeys, faced in stucco, painted in colours chosen before the war. Little Italy walking tours read that geometry as a menu. The census tells a quieter story. Italian-Americans are now a minority in the district they built. Chinatown has expanded north across Broadway. Rents have removed many of the families whose grandparents queued for fresh ricotta on Saturday mornings. What remained were the delicatessens, the bakeries and the coffee bars — and they remained because people kept arriving to eat in them. Entry to the neighbourhood itself costs nothing; the streets are public and open every day. What north beach little italy food tour tickets buy is introduction rather than admission: the counterman who explains the difference between mortadella and coppa, the baker who volunteers the age of a sourdough starter without being asked. San Francisco Italian food walks are, in that sense, less about appetite than about access to a working culinary district that has outlasted the community that founded it.