A Hakone hot spring in Tokyo.


Carried from source springs in Hakone and Lake Ashi, this open-air bath is a simple alkaline bath that is good for the skin. The women’s bath includes a mist sauna featuring original aromas produced by Awaji Island artist IZUMI KAN, while the men’s bath offers a dry sauna.

indoor bath / half-outdoor bath / mist sauna (women) / dry sauna (men)


For Guests Operating Hours

Weekdays: 06:00–13:00 (last entry at 12:30); 16:00–01:00 (last entry at 00:30)

Weekends and Holidays: 06:00–14:00 (last entry at 13:30); 16:00–01:00 (last entry at 00:30)

Spring & Quality

Hakone Ashinoko Onsen Azalea
Hot Spring Odakyu Mountain Hotel
Spring quality:
Alkaline simple hot spring
(hypotonic, alkaline, low hot spring)
Neuralgia, muscular pain, arthralgia,
50 shoulders, joint stiffness, bruises,
sprains, chronic digestive diseases,
diabetes, hemorrhoids, coldness,
convalescent convalescence,
fatigue recovery, health promotion

Onsen Day-Trip Plan


Day trip plan (* reservation required by 15:00 two days before)

Hot bath usage time
[Morning part]
Weekdays 9:00 to 13:00 (last admission 12:30)
Saturdays, Sundays, and holidays 9:00 to 14:00 (last admission 13:30)

All day 16: 00 ~ 22: 00 (last admission 21:30)

It will be a plan with meals or workshops.
We do not offer a hot bath only plan.