Said to be the place to go for all things vintage, this is a fairly large market just behind the Tokyo Metropolitan Government Buildings, a famous landmark and free viewpoint. It’s held 1-3 times a month, most months of the year.
Market times vary, with 10-3pm being a safe bet for scheduling. On some days, it starts at 9am and ends between 3:30 and 4pm—for early risers who don’t want to miss out on top treasures, you can always show up early and go for a coffee if nothing is happening yet.
Make sure to check the events page of the park beforehand in case of cancellations due to, e.g. rain.Organizers may cancel events, alter schedules, or change admission requirements without notice. Always check official sites before heading to an event.