From left: The harbor in Falmouth, England; picking flowers at Petalon Farms. Credit: Jenna Foxton Over a long weekend in Cornwall, a windswept county in southwest England that juts out into the Atlantic, you might find yourself in Falmouth for dinner at one of the area’s hottest tables. And while a dish of line-caught mackerel with bright-green asparagus at Culture Restaurant could certainly steal the show, do look at the plate once you’ve licked it clean.