Even on a tight schedule, Tsukiji Outer Market earns the hours.
Allow 1.5–2 hrs.
Go hungry and early: tamagoyaki on a stick, grilled scallops, uni, fresh sushi from tiny counters — it's the best grazing in Tokyo. The catch: the famous tuna auction moved to Toyosu years ago, it's packed and touristy by 9am, and a few stalls overcharge, so this is about eating, not 'the market' of legend.