Tsurumaru Udon serves udon, tempura, and rice balls, and sits next to the Ac Hotel Osaka on the way to Nakanoshima Park. Its kitsune udon comes with sweet fried tofu and a broth that is not salty, and after choosing udon at the entrance, diners place tempura or rice balls from the display onto a tray and pay for everything together. Meals are available from 7 a.m., and when finished, diners return their trays to the return counter to the left of the water dispenser. Payment is cash only.