Meet several restaurateurs and a sea urchin diver who’s been practicing the tradition for 30 years.

Head to idyllic San Diego. Restaurant owner and gardener Trish Watlington shows how to pre-soak, inoculate and plant fall peas, and explains why and how to combat the infestation of white flies by planting marigolds. Chef and restaurateur Javier Plascencia prepares a dish of quail and farrato. Go diving with sea urchin diver Pete Halmay, who has been practicing this tradition for more than 30 years, and visit the sisters who grow Thai produce at their home farm to supply their restaurant Suppanee House of Thai.