Otsuka, Ichikawamisato, Yamanashi Prefecture
Miharashi-no-Oka Mitama-no-Yu
A strong drive-to choice for Kofu Basin sunsets and night views, outdoor bathing and a panoramic sauna at a modest price. It is not the pick for untreated source-flow bathing or rail-only access.
Facility photos
Check before bathing
- Opening hours
- 10:00–23:00; last admission 22:30. Adult admission is ¥850, elementary-school children ¥500 and preschool children free. The facility is generally open year-round but closes for maintenance about five days a year.
- Access
- The station shuttle ended on 1 April 2025. Taxi availability around Kai-Ueno Station can be limited, so plan transport in advance.
- Tattoo policy
- Tattoos, body paint and tattoo stickers are not permitted. Guests who need diapers may not use the bath; a baby bath is available.
Spring & water temperature
- Spring-source temperature
- Not published in the facility profile.
- Bathing temperature
- Fixed pool temperatures are not published.
- Spring source
- Mitama-no-Yu, first recorded emerging in 1999.
- Spring classification
- Alkaline simple hot spring; the facility also describes it as a brown moor spring.
- pH
- The 2018 analysis gives 8.9 at the source and 9.0 in the laboratory; no newer figure is published on the current overview page.
- Flow rate
- 198 L/min on the current overview page; the 2018 analysis gives 200 L/min. The dated values are retained separately rather than averaged.
- Water handling
- The facility's published spring-use information says no water is added; the water is heated to bathing temperature, circulated through filtration and disinfected with chlorine-based chemicals. It is not an untreated, 100% source-flowing bath.
- Analysis date
- 2018
Bathing indications
The facility lists general bathing indications; these are not a treatment guarantee.
The 2018 analysis and current overview differ slightly on yield. Tattooed guests, people with body paint and sticker tattoos are not admitted.
How to read a bath profile
Spring-source temperature and actual bathing temperature are kept separate. Each score is shown independently for comparison rather than collapsed into one overall score.
