To Toshi (Toshijima) (17 minutes, 10 times a day), Momotori (Toshijima) (12 minutes, nine times a day), Sakatejima (10 minutes, eight times a day), Sugashima (22 minutes, eight times a day), Irago (an hour, eight times a day) and Kamishima (40 minutes, four times a day).