Day-trip hot spring complex on the Sukumo River in Okuyumoto, Hakone, with gender-separated baths, saunas, rest areas and restaurants. Most baths are open-air rock pools of natural spring water, and the women's side includes a tunnel-like cave bath.
Highlights
- Open-air rock baths
- Women's cave bath
- Tatami rest areas by river
Good to know
- Entrance fee cash only, ticket machine
- Tattooed guests admitted only if alone
- Weekends crowded, many stairs inside
