Nishiyama Onsen Keiunkan 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 its foundation the hotel has had all its hot water sourced directly from the
Nyūtō Onsen Nyūtō Onsen Nyūtō Onsen (乳頭温泉郷 にゅうとうおんせんきょう "Nyūtō-onsen-kyō") is a rural hot spring resort in Towada-Hachimantai National Park, Semboku City, Akita Prefecture, Japan and consists of Japanese-style hot spring spas scattered around the base of Mount Nyūtō. Nyūtō Onsen is composed of seven separate accommodation facilities. This includes six ryokan inns (including the well-known Tsuru-no-yu Onsen and the innermost Kuroyu Onsen) and the Nyūtō Onsen-kyō Kyūka-mura Hotel. Additionally, a free outdoor natural hot spring ("noya") known as Ippon-matsu Onsen is on the trail of Mount Nyūtō. The site formerly hosted accommodation facilities and changing rooms which are no longer present; the