Wok Wiz in San Francisco is Shirley Fong-Torres's Chinatown walking tour, running since 1985, with a dim sum lunch at the end and a fortune cookie factory stop.
Route: Chinatown: tea, dim sum, Cantonese herbs, fortune cookies
Tip: Book the Saturday morning slot; the fortune cookie factory only runs the public tour on weekends.
Avital Food Tours runs the North Beach Italian walking tour in San Francisco, four progressive stops with Caffe Trieste, Molinari Delicatessen, Tony's Pizza Napoletana and a local hidden-gem dessert stop.
Tip: Public tours run Saturday at 15:00; private tours can be scheduled any day.
Edible Excursions runs the Ferry Building Saturday Market tour in San Francisco, walking the producer stalls with Hog Island oysters, Cowgirl cheese and Acme bread.
Tip: Saturday morning only; arrive at 09:30 for the 10:00 tour before the market peak crush.