Illustrative onsen mood image
Illustrative image — not a photo of this facility

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.

Essentials

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 ↗

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

Amenities

ParkingLockers

✔ 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