Mikado Cave Onsen
The pure, natural source spring of Mikado Cave Onsen, a famous hot spring with more than 200 years of history that became well known after being introduced to a pharmaceutical association by Hiraga Gennai, the inventor of the Edo period. Poured generously into the source-fed main bath, this spring boasts a rare, extremely high alkalinity with a pH of about 9.2 to 9.6, offering a supreme bijin no yu that gives your skin a smooth, slippery, premium feeling the moment it touches you.