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As Owakudani Hot Spring was known as "Ojigoku" for the steam billowing from it, Kowakudani Hot Spring had been known as "Kojigoku."
To commemorate a visit by the Meiji Emperor in 1873, it was renamed Kowakudani, and when hot springs were developed there in the Showa Period, springs with varying temperatures and types of water were discovered.
While soaking in these history-rich waters, guests can gaze upon the garden and mountains of Hakone.

Panoramic Bath

Image of Panoramic Bath with Open-Air Bath
Image of Panoramic Bath with Open-Air Bath

This open bath offers a majestic view of the outer rim of Mt. Hakone.
Men and women make alternating use of the bath, which offers two unique views.

Hours
3:00 p.m. - 0:00 a.m. / 5:00 a.m. - 10:00 a.m. (Men and women make alternating use of the bath)
Details
Indoor bath, open-air bath, sauna
Quality
Sodium chloride spring
Efficacy
Effective on joint and muscle pain, stiff shoulders, etc.

Private Bath

Private baths are ideal for families, couples, or friends wishing to relax in the quiet waters.
Guests can select among stone or Japanese cypress baths.
*When reservations become available, we will announce on the website.
Effective on joint and muscle pain, stiff shoulders, etc.

Stone Bath

Hours
3:00 p.m. - 0:00 a.m.
Bath details
4 Baths, including 1 bath with universal design
Others
By reservation

Japanese cypress bath

Hours
3:00 p.m. - 0:00 a.m.
Bath details
3 Baths
Others
By reservation

All areas of Yunessun can be used freely during stays!
Fun for the whole family! Hakone Kowakien Yunessun is an all-weather onsen amusement park.
Yunessun lets guests enjoy onsen in their bathing suits, Mori no Yu offers the best of Hakone nature and hot springs with outdoor or private baths, restaurant Kumashiro serves sushi and shabu-shabu for lunch, and guests can shop for souvenirs as well.

Yunessun

Hours
Weekdays 10:00 a.m. - 6:00 p.m.
 
Weekends Holidays 9:00 a.m. - 6:00 p.m.
Price 
Free entry to staying guests
Remarks
Business hours change seasonally.
Please confirm on the official website.

Mori no Yu Area

Hours
11:00 a.m. - 8:00 p.m. (Final Admission 7:30 p.m.)
Price
Free entry to staying guests
Remarks
Business hours change seasonally.
Please confirm on the official website.

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