Hakone Kowaki-en Yunessun / Mori No Yu


Hakone Kowaki-en Yunessun / Mori No Yu

Hakone Kowaki-en Yunessun consists of two separate areas: the swimsuit area, and the Mori no Yu, or the onsen area where the customers enter the water naked. Mori no Yu is the best choice for those who crave a relaxing time at an onsen. One of the ways to enjoy your free time to the fullest is soaking in the open-air bath (rotenburo) while gazing at the surrounding mountains of Hakone. Visiting the ladies-only hinoki cypress bath is definitely a must. You’ll be surprised how soothing the aroma of the natural wood is. If you’re visiting with a partner or bringing a whole family with you, a reservable, private bath could be a perfect choice for you. You can also try out the indoor bath or sauna, and many other types of baths that are all part of this comforting zone.



Kanagawa, Ashigarashimo, Hakone, Ninotaira 1297 [ Google Maps ]

Business Hours

Mori no Yu (Onsen Area): 11:00-20:00
Yunessun (Swimsuit Area): 9:00-19:00

Days Closed

Open year-round
*The park is closed during facility maintenance

Time Required

2 hours or more



Accepted Credit Cards

Visa, Mastercard, JCB, American Express, Diners Club, UnionPay, other


English, Chinese, Korean

Nearest Station

Hakone Tozan Bus (Kowakien 137), (Yunessun-mae 138)


Ride the Hakone Tozan bus (Line H) bound for Hakonecho-minato from Hakone Yumoto Station (OH51); after about 20 minutes, get off at Kowakien bus stop (137) or Yunessun-mae bus stop (138); within walking distance


Yunessun (Swimsuit Area): adults: 2,500 yen, children: 1,400 yen
Mori no Yu (Onsen Area): adults: 1,500 yen, children: 1,000 yen
Passport (Yunessun/Mori no Yu): adults: 3,500 yen, children: 1,800 yen
*All fees including tax

Freepass Discount Information

Mori no Yu (Onsen Area): adults: 1,200 yen, elementary school students: 600 yen
Passport (Yunessun/Mori no Yu): adults: 3,000 yen, elementary school students: 1,500 yen

Telephone Number


Official Website
*Information may be in Japanese.