Sushi Tomodachi Jeju, near Jeju City Hall, serves conveyor-belt sushi. Salmon belly, domi teriyaki sushi and soy-marinated shrimp sushi go around on the belt, and premium cuts can be ordered separately. Sitting down, you mark the sushi you want by number on an order sheet and hand it to the chef, who makes it on the spot. Lunch and dinner involve a wait of about 30 minutes to an hour, and you can hold your place with a waiting app.