Relaxing — deep, immediate muscle release.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Yashio, in the southeastern Saitama Prefecture adjacent to the Tokyo metropolitan boundary and Misato in Saitama, is a compact industrial and residential city whose extensive leek (negi) cultivation in the surrounding farmland has made Yashio negi one of the most celebrated agricultural products of the lower Saitama plain, prized by professional chefs throughout the greater Tokyo food culture. Yashio Onsen Saitama draws on chloride-rich thermal waters from the geological resources of the southeastern Saitama lowlands, offering warm restorative baths in a compact suburban city whose negi cultivation heritage, industrial waterway character along the Showa Irrigation Canal, and easy access to central Tokyo via the Tobu Urban Park Line create a practically located and accessible spa destination. The traditional Yashio negi cultivation, the Showa Irrigation Canal cycling paths, and the easy urban access to both the Saitama Prefecture arts centres and central Tokyo's cultural attractions make Yashio a conveniently connected suburban spa destination on the Tokyo metropolitan boundary.