
Kanagawa · Hakone Onsen
Tenzan Tōjikyō – Kayoi Tōji Ikkyū
天山湯治郷 かよい湯治 一休
A quiet bath-only annex within the Tenzan Tōjikyō grounds along the Sukumo River, up the valley from Hakone-Yumoto. Where neighbouring 'Higana Tōji Tenzan' is a full-day complex with lounges and dining, Ikkyū has no indoor bath at all — just open-air tubs of wood and stone fed free-flowing by two springs, a sodium-chloride and an alkaline simple spring. Silver-ion sterilisation (no chlorine smell), spare design and a hushed, no-chatter atmosphere keep regulars loyal. ¥1,200; open 11:00–20:00 (until 21:00 weekends and holidays, last entry one hour before), closed Thursdays. On weekdays a ¥300 'hashigo' ticket lets you add Tenzan next door. About 5 minutes from Hakone-Yumoto Station by the inns' shuttle bus or taxi, or a 25-minute walk.
- Price (adult)
- ¥1,200
- Hours
- Weekdays 11:00–20:00 / weekends & holidays 11:00–21:00 (last entry 1 hr before)
- Closed
- Thursdays (plus ~5 days mid-December)
- Access
- From Hakone-Yumoto Station take the inns' shuttle bus to Oku-Yumoto-iriguchi (2 min walk) or a 5-min taxi; 15 min by car from Hakoneguchi IC
- Water type
- Simple spring
- Tattoos
- Ask ahead
- Admission
- Adults ¥1,200 / children (1–elementary) ¥700. Add ¥300 for a hop-over ticket to Tenzan on the same grounds
- Water
- Own sodium-chloride source, 54 °C, pH 7.98, 70 L/min; silver-ion sterilisation, no chlorine smell
- Baths
- No indoor bath — all open-air. Men’s side overlooks the Sukumo River gorge, women’s faces a waterfall. Ancient-cypress bathhouse with changing area and bath in one room, communal-bath style
- Parking
- Shared with Tenzan Tojikyo, free, ~140 cars
- Phone
- 0460-85-8819
- Official site
- tenzan.jp ↗
- Open in Google Maps
- Google Maps ↗
Essentials
Stay in this onsen town
Compare and book stays in Hakone Onsen. Day bathing itself needs no booking.
Opens partner booking site (affiliate)
Why go
- All open-air, two free-flowing springs
- Hushed bath-only annex, ¥1,200
- ¥300 weekday add-on for Tenzan
A connoisseur’s bathhouse where the water is the star
Ikkyu is the bathing-only building on the Tenzan Tojikyo grounds. Unlike the main Tenzan with its lounges and restaurants, it is stripped down to the bath itself: a house of ancient cypress with changing area and bath in a single room, old-communal-bath style, and no indoor tub — everything is open-air. The men’s side is airy with breezes off the Sukumo River gorge; the women’s side faces a waterfall. It is ¥100 cheaper and quieter than Tenzan, and a ¥300 add-on lets you use both.
Tips & cautions
- Closed Thursdays (Tenzan itself is open daily); also ~5 days in mid-December.
- No indoor bath, so moving between tubs is cold in winter or rain.
- Changing area and bath share one room — keep belongings dry; valuables in the front-desk lockers.
- It is in Oku-Yumoto, ~25 min uphill on foot from the station; the ryokan-association loop bus (route B, paid) or a taxi is easier.
- Tenzan next door has restaurants and rest areas — combine with the ¥300 ticket for a full day.
Getting there
From Hakone-Yumoto Station, ryokan-association loop bus ~10 min to “Tenzan Tojikyo”, or Hakone Tozan bus to “Oku-Yumoto Iriguchi” then 2 min on foot. By car ~3 min from Sukumogawa IC.
Before you go
- No official tattoo policy is published — ask at reception.
- Last entry is 30–60 minutes before closing.
Features
Mood & scenery
Price
Convenience
Amenities
✔ Verified operating: 2026-09 天山湯治郷公式・ゆる〜と
Prices and hours change. Check official sources before visiting.
More in this area
Tenzan Tohji-kyo
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Hakone Kowakien Yunessun
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Hakone Yuryo
Three minutes by free shuttle from Hakone-Yumoto. A farmhouse-style day spa whose 19 private open-air rooms are the draw (reserve ahead). The löyly sauna sessions in the main bath are popular too.