The escalator at the Keikyu Line's Misakiguchi Station transported me to a windswept hilltop where a booth provided information on places to pick mikan (tangerines) and shops sold tuna, toasted laver bread and horse mackerel seasoned with mirin (a rice wine). I boarded a bus. As it descended between mikan orchards and freshly planted fields, I noted further intimations of the sea — trucks emblazoned with "Tuna Express" and "High-Class Blue Fin Tuna." After arriving at the harbor, I strolled along a waterfront crowded with shoals of tuna restaurants.