Ubako Onsen Shumeikan
姥子温泉 秀明館うばこおんせん しゅうめいかん
Day Use
YesBath-only (entry 15:00–16:00): ¥1,500/person incl. hand towel. Yudoko private seat (1–2 persons): 2h ¥2,000 / 4h ¥3,200 / full day ¥5,600 (incl. yukata+towel, entry 10:00–14:00). Group rooms: mid-size 3 persons ¥6,000 / large 4 persons ¥10,000 (4h only). Child 4yo–elementary ¥1,000. No reservations; same-day walk-in only.
Bathing & Water
Enclosed indoor bathing area
Uses natural hot spring water
Capabilities
Shared bathing area for all genders
Policies & Services
Allows entry with visible tattoos
Welcomes children and families
Children under 3 and those in diapers not permitted. Ages 4 to elementary school: ¥1,000.
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Towels available to rent or borrow
Relaxation space for after bathing
On-site or nearby parking available
About
Shumeikan (秀明館) in the Ubako (姥子) area of Hakone runs as a toji (湯治, restorative bathing) facility rather than a standard day-use onsen. The water rises naturally from rock beneath the bath and flows through fresh without recirculation. Two tubs sit in a small indoor bath room, just enough space for a handful of people at once. There are no showers or soap; you soak, nothing more. For those arriving in the morning, private tatami-floored rest rooms, yudoko (湯床), are available to book by the session with a yukata included. No Wi-Fi, no restaurant.
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