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
Onsen hiragana character ゆ ("yu"), understandable to younger children, is used. Traditionally, onsens were located outdoors, although a large number of inns have now built indoor bathing facilities as well. Nowadays, as most households have their own bath, the number of traditional public baths has decreased, but the number of sightseeing hot spring towns has increased (most notable ones including Kinosaki Onsen, , and ). Onsens by definition use naturally hot water from geothermally heated springs. Onsens are different from sentō, indoor public bath houses where the baths are filled with heated tap water. Traditionally, men and women bathed together at