Manten no Yu: Yokohama’s Station-Side Onsen for a Short Visit
Beside Kami-Hoshikawa Station, Manten no Yu opens at 6 a.m. Check admission, towel costs, bath and sauna options, family rules and autumn repair closures.
Manten no Yu is a practical choice when you want a bath without turning it into a half-day trip. It sits just outside Kami-Hoshikawa Station’s south exit, about ten minutes from Yokohama Station on a local train. The facility opens at 6 am and stays open until 1 am the next day, with last entry at 12:30 am. That makes it useful before breakfast or after an evening in the city—provided you check the latest maintenance notice first.
Manten no Yu has a temporary maintenance change coming up:
| Dates | Operating plan |
|---|---|
| October 20–21 and November 17–18, 2026 | Facility closed |
| October 22–November 16, 2026 | Outdoor bathing area closed for exterior work; tower sauna and cold baths scheduled to remain open; outdoor-air cooling unavailable |
| During exterior work | Admission discounted by ¥150 for adults and ¥50 for children |
The facility expects waits at many times. If the natural-spring outdoor bath is the reason for your visit, choose another date.
What admission costs—and what “empty-handed” really means
The weekday rate is ¥1,100 for adults; weekends, public holidays and special dates cost ¥1,200. Children in elementary school pay ¥400, while preschool children, including infants, pay ¥250. Towels are extra, but shampoo, conditioner and body wash are provided.
| Optional cost | Price |
|---|---|
| Member registration at the front desk | ¥500 |
| Member admission: weekday / weekend or special date | ¥950 / ¥1,050 |
| Face- and bath-towel rental set | ¥450 |
| Face towel / nylon scrub towel / bath towel | ¥200 / ¥250 / ¥600 |
The member discount is ¥150 per adult visit, so the ¥500 registration fee is recovered on the fourth visit at the same rate. An adult arriving without towels pays ¥1,550 on a weekday or ¥1,650 on a weekend or special date, before food or other services.
The ticket allows re-entry while you remain on site, but you must ask reception for a hand stamp before leaving the bathing area. Leaving the building ends the re-entry privilege. That is handy if you plan to eat at the facility’s restaurant; it does not turn the admission ticket into an all-day pass outside the building.
The natural spring is real, but not every tub is the same
The outdoor stone bath is the clearest natural-spring feature: the official bath page says it uses hot spring water drawn locally. The outdoor pulse-massage bath is also described as combining the natural spring with electrical massage. Other baths include a reclining outdoor bath and individual ceramic tubs, while the indoor area has carbonated herbal water, a rotating bath, silk bath and several jet or massage tubs. Those are different bathing experiences, not all confirmed as natural spring water.
There are two sauna options. The tower sauna uses automatic steam events, and the women’s side has a 50°C steam salt sauna. A mint-scented cold bath is also available. Facility issues can temporarily affect equipment, so check notices if a particular sauna or cold plunge is essential.
The bathing information confirms natural spring water in named baths, but does not provide a full spring analysis or say that every tub uses untreated, continuously flowing source water. The spring claim applies to those specific baths, not the entire facility.
A family bathhouse, with rules to plan around
Infants are admitted, but elementary-school-age children and younger must enter with an adult. Children in elementary school or older cannot use the opposite-gender bath; preschoolers who are at least 120 cm tall cannot use it either. The tower sauna is for elementary-school-age children and older. A child 120 cm or shorter needs a guardian in the jet bath and cold bath.
Entry is refused to guests with tattoos, body paint or tattoo stickers; the posted policy gives no cover-sticker exception. Intoxicated guests and people with certain skin conditions may also be refused. No minors may stay in the building after 11 p.m., even though it remains open until 1 a.m.
There is no published private family-bath booking option on the facility pages. If your group needs to bathe together, compare the Yokohama day-use onsen guide, which covers a facility with a bookable family bath. For an adults-only spa day with lounges and shared sauna space, see the SPA EAS Yokohama guide.
The station is the main reason to choose it
From Yokohama Station, take a local Sotetsu train to Kami-Hoshikawa; the ride takes about ten minutes. Leave through the south exit and the large bathhouse is immediately to the left. If travelling from Ebina or Shonandai, the facility advises transferring to a local train at Futamatagawa. The nearly door-to-door station access is especially useful on rainy days.
Drivers get three hours of free parking after validating the ticket at reception. Combining a bath with a listed body-care treatment can extend the free period to five hours; time beyond that is charged at the parking lot’s regular rate. For a normal short soak, three hours is ample. The facility also lists local bus stops at Kami-Hoshikawa for routes from several nearby districts.
When Manten no Yu fits—and when it does not
Choose Manten no Yu for a straightforward bath close to Yokohama, especially if you can bring your own towel and want an early or late opening. There are enough indoor and outdoor options for a satisfying 60–120-minute visit, but it is not built around a long lounge stay or a bookable family bath.
For visits between October 22 and November 16, the reduced ticket comes with a substantial compromise: no outdoor baths, no outdoor air cooling and possible waits. Exterior work is scheduled through mid-February 2027, except Sundays, and the inn warns of scaffolding and occasional work noise. Its notice does not yet give a complete day-by-day bathing schedule after November, so check the official updates again rather than carrying the autumn closure dates forward.
