Nishiyama Onsen Keiunkan (Nishiyama Onsen Keiunkan; Nishiyama Onsen Keiunkan) is the oldest hot spring hotel in the world, opened in 705 AD, Located in Hayakawa Town, Yamanashi Prefecture, Japan. The official website of Xishan Hot Spring Qingyun Pavilion provides a simplified Chinese version, and users can inquire about information such as guest rooms, catering, transportation, and surrounding tourism.