The three spas, Kakyoyu spa, Oshio spa, and Reisenji spa combined are called Maruko spa village, to have been designated by a national healing spa by the Ministry of Environment. Oshio spa was found by an officer of Shingen Takeda's to leave the name of "Shingen's hidden spa" to have cured the soldiers wounded in Kawanakajima campaign. Currently, it is a simple spa with an inn and a public bath.