Want the hour booked before you leave: Tenseien in Hakone-Yumoto. ¥7,760 for two adults with one private hour (¥2,200 of that is the private bath; the rest is admission and bathing tax). You can book the private-bath slot until 19:00 the day before. Admission itself can’t be booked, and no tattoos are allowed.
A family staying in Tokyo, or you have a small tattoo: Toyosu Manyo Club. ¥12,500 for two adults with one hour in its family bath. Unless you’re a Platinum, Gold or Silver member of its Premier Club, you reserve it at the front desk after you arrive. A tattoo that two of its cover stickers can hide is allowed. Its pages call this a family bath and don’t say whether couples can use it.
Want a bath in your own room overnight: that’s a different choice. See where to stay in Hakone, which compares inns with a bath in every room.
A private bath (kashikiri-buro, or kazoku-buro, “family bath”) is a hot-spring tub you rent by the hour and lock behind you. At a day-use facility you pay admission as well, and the facility’s rules for the whole building still apply inside it.
Tap the map to open it full size.
If you are…
- Two adults, no tattoos, and you want the private hour booked before you set out: Tenseien. Book the slot online by 19:00 the day before. On the day, check in at the day-use desk at least 30 minutes before your slot, as Tenseien asks. What we couldn’t confirm: day admission can’t be reserved and can be refused when the building is full, and the official pages don’t say whether a private-bath booking changes that.
- A family staying in Tokyo, happy to take whatever time is free: Toyosu Manyo Club, about 13 minutes of riding time from Tokyo Station. Reserve the family bath at the front desk after you arrive; only Platinum, Gold and Silver members of its Premier Club can book ahead. If you’re two adults who aren’t family, the official pages don’t say whether you can use it.
- A couple wanting to bathe together: Tenseien. Its booking page describes the private bath as being for families or couples. Toyosu Manyo Club calls its bath a family bath and doesn’t say on its pages whether couples can use it.
- With a tattoo that two 11 × 20 cm cover stickers can hide: Toyosu Manyo Club. Declare it at the front desk, and keep the stickers (¥110 each) on everywhere in the building, including the family bath. Tenseien turns away any tattoo or tattoo-style sticker.
- With a larger tattoo: neither of these works. See our tattoo guide, or stay overnight in a room with its own bath (Hakone stays).
- With a child still in diapers: neither facility lets them into the large shared baths, and the two differ on the private bath. Toyosu Manyo Club’s FAQ says children in diapers can use its family bath. Tenseien lends a baby bath to use inside the private-bath room; its pages don’t say a child in diapers can go into the hot-spring tub itself.
The two side by side
From each facility’s official site (in Japanese), checked September 28, 2026. Totals are our arithmetic; train fares aren’t included.
| Two adults, one private hour | Tenseien (Hakone-Yumoto) | Toyosu Manyo Club (Tokyo) |
|---|---|---|
| Admission | ¥5,460 (¥2,730 each) | ¥7,700 (¥3,850 each) |
| Bathing tax | ¥100 (¥50 each) | ¥300 (¥150 each) |
| Private bath, 1 hour | ¥2,200 | ¥4,500 |
| Total | ¥7,760 | ¥12,500 |
| Book the private bath before you arrive | Yes, until 19:00 the day before (booking page in Japanese) | No, except Platinum, Gold and Silver members of its Premier Club. Everyone else reserves at the front desk after arriving |
| Tattoos | Not admitted, including tattoo-style stickers | Allowed under up to two cover stickers (¥110 each), declared at entry |
| From central Tokyo | Romancecar from Shinjuku, about 90 min, then 12 min walk | About 13 min riding from Tokyo Station, then 4 min walk |
Tenseien
Where it wins: you can book the private hour before you leave Tokyo, and it’s the cheaper of the two. Tenseien is a hotel in Hakone-Yumoto that also sells day admission, with 12 private baths filled with hot-spring water. Admission includes a face towel, a bath towel and a yukata.
Where it loses: the day trip itself. It’s about 90 minutes from Shinjuku by Romancecar, the private-bath booking page is in Japanese, and there are two things the booking doesn’t settle, set out in the card below.
Tenseien
箱根湯本温泉 天成園
- Suits you if
- You have no tattoos and want a private hour booked before you leave, as a couple or a family.
- Skip it if
- Anyone in your group has a tattoo or a tattoo-style sticker.
- Total for two
- ¥7,760: admission ¥2,730 each, bathing tax ¥50 each, private bath ¥2,200 per room for 60 minutes. Staying after midnight adds a late-night charge (official site and booking page, checked September 28, 2026).
- Booking the private bath
- Online, until 19:00 the day before, through the booking banner on Tenseien’s private-bath page (an asoview page, in Japanese; card, Paidy or PayPay). Bookings can’t be changed. Cancelling costs 50% from the day before and 100% on the day. Check in at the day-use desk at least 30 minutes before your slot.
- What the booking doesn’t settle
- Day admission can’t be reserved and can be refused when the building is full. The booking page says entry can take longer when it’s crowded. Whether a private-bath booking guarantees entry on a crowded day isn’t stated in Tenseien’s official information.
- Important limits
- No one with a tattoo or a tattoo-style sticker is admitted. Children in diapers can’t use the large baths. A baby bath can be borrowed for use inside the private-bath room while supplies last; the pages don’t say the child can use the hot-spring tub itself. Under-18s without an adult need a parent’s consent form, and junior-high age and younger can’t come without an adult. No re-entry once you leave.
- What we checked
- Official private-bath, day-use and access pages (Japanese), and the private-bath booking page linked from them, checked September 28, 2026. Not visited.
Book the private bath from Tenseien’s private-bath page (official, Japanese)
If you’d also like to prepay admission with lunch or a late-night stay in English, KKday sells Tenseien admission sets. They don’t include the private bath, the ¥50 bathing tax is paid on site, and we didn’t see an admission-only plan when we checked.
See Tenseien admission sets on KKday (optional)This page contains affiliate links. If you book through them, AHH, JAPAN may earn a commission at no extra cost to you.
Toyosu Manyo Club
Where it wins: it’s inside Tokyo, and it’s the only one of the two that admits a covered tattoo. The family bath is filled with natural hot-spring water, and admission covers the baths, a yukata, a bath towel and a face towel.
Where it loses: you can’t book the family bath before you arrive, so you’re relying on a free slot, and it’s the more expensive of the two.
Toyosu Manyo Club
東京豊洲 万葉倶楽部
- Suits you if
- You’re a family staying in Tokyo, including with a child still in diapers, or you have a small tattoo that two cover stickers will hide.
- Skip it if
- You need the private hour settled before you arrive, or your tattoo is larger than two 11 × 20 cm stickers.
- Total for two
- ¥12,500: admission ¥3,850 each (10:00 to 3:00), bathing tax ¥150 each, family bath ¥4,500 per room per hour. Staying past 3:00 adds ¥3,000 each (official site, checked September 28, 2026).
- Booking the family bath
- At the front desk after you arrive. Only Platinum, Gold and Silver members of its Premier Club can book ahead. The blinds must stay fully lowered while you use it.
- Important limits
- A tattoo is allowed only under up to two of its cover stickers (max 11 × 20 cm each, ¥110 each at the front desk). Tell the front desk as you enter; guests who don’t are asked to leave immediately. The stickers stay on everywhere, including the family bath. Its pages don’t say whether couples who aren’t family can use the family bath.
- How to pay
- At the door. We haven’t linked a ticket: its Klook ticket excludes guests with tattoos, and we couldn’t confirm that it covers the admission the family bath requires.
- What we checked
- Official price, FAQ, tattoo and access pages (Japanese), checked September 28, 2026. Not visited.
Inside a booked slot
A private bath follows the same routine as a shared one: wash and rinse before you get in. The full bathing sequence carries over. The difference is the clock: both places sell the bath by the hour, and the next group has the following slot.
Your hour starts on time. Wash quickly so the time you booked goes to soaking, and be dressed and out when it ends.
If you’re choosing a day-use onsen in Tokyo without a private bath, see which Tokyo onsen to pick for a half day.
Sources
All checked September 28, 2026.
- Tenseien (official, Japanese): private baths, prices and the booking banner
- Tenseien private-bath booking page (asoview, linked from the official site; Japanese): booking deadline, cancellation and check-in time
- Tenseien (official, Japanese): day-use bathing and admission rules
- Tenseien (official, Japanese): access
- KKday: Tenseien admission listing (conditions)
- Toyosu Manyo Club (official, Japanese): prices, family bath and hours
- Toyosu Manyo Club (official, Japanese): FAQ, including family-bath booking, children and cover stickers
- Toyosu Manyo Club (official, Japanese): tattoo rules
- Toyosu Manyo Club (official, Japanese): access