Nishiyama Onsen Keiunkan local Hakuho Springs. The hotel was last renovated in 1997 and has 37 rooms. Nishiyama Onsen Keiunkan Nishiyama Onsen Keiunkan (西山温泉慶雲館) is a hot spring hotel in Hayakawa, Yamanashi Prefecture, Japan. Founded in 705 AD by Fujiwara Mahito, it is the oldest hotel and one of the oldest companies in operation. In 2011, the hotel was officially recognised by the Guinness World Records as the oldest hotel in the world. It has been continuously operated by 52 generations of the same family (including adopted heirs) for over 1,300 years. The Keiunkan lies at the foot of the Akaishi Mountains. Since
Tamagawa Hot Spring for the traffic by the end of November due to the heavy snowfall in the area. There is at least one more hot spring in Tamagawa. Nibukawa Hot Spring is also in Tamagawa. Tamagawa Hot Spring The Tamagawa Hot Spring in Senboku, Akita Prefecture, Japan is the highest flow rate hot spring in Japan. The spring has a flow rate of 150 litres/second. It feeds a 3-meter wide stream with a temperature of 98 °C. The water from Tamagawa Hot Spring is very acidic, with a pH of about 1.1. There is radioactive radium gas and other radioactive materials dissolved