On a side street in Chinatown, you'll find one of the city's best Japanese restaurants. Track down the nondescript entrance up the street from the Chinatown arch, settle into one of the two rooms (in a booth, if you're lucky), and watch as kimono-clad waitresses glide past, bearing sushi boats the size of small children. Ginza is a magnet for Japanese expatriates, sushi-lovers, and, in the wee hours, club-hoppers. It's not the only place in town where expert chefs work wonders with ocean-fresh ingredients, but it serves some of the most creative creations (including "spider maki," a soft-shelled crab fried and tucked into a seaweed wrapper with avocado, cucumber, and flying-fish roe). An excellent starter is edamame -- addictive boiled and salted soybeans served in the pod (you pull the beans out with your teeth). Then let your imagination run wild, or trust the chefs to assemble something dazzling. Green-tea ice cream makes an unusually satisfying dessert, but nobody will blame you for finishing with another round of California maki.