Ginza Maru is a Japanese restaurant in Ginza 6-chome that grills fish over charcoal. At lunch it serves grilled fish set meals such as mackerel and tuna, along with silver cod marinated in white miso. Lunch opens at 11:30 AM and takes walk-ins without reservations, while the evening kaiseki course takes about two and a half hours. A line forms before lunch opening, and the wait can run about 20 minutes.