 Onahama and Yumoto were annexed by Iwaki in 1954, prior to the 1966 merger.Yumoto is home to Iwaki Yumoto Onsen, one of the oldest "onsen" in Japan, with many "ryokan" hotels.It is also home to Spa Resort Hawaiians, a spa resort which draws 1.5 million visitors per year and was the subject of the 2006 movie "Hula Girls".