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Yunessun Spa--Japan's Amazing Themed Spa baths in Hakone, Japan

Updated: Jan 15, 2022

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What is Yunessun?

Yunessun is a theme park that offers a wide variety of unique hot spring baths, including coffee, wine, sake, green tea, and so forth. These baths are found in the swimsuit area. The other area consists of the Mori no Yu naked onsen.

When you arrive at the counter, you will choose either the swimsuit area, Mori no yo naked onsen, or both. The employee issues electronic wrist bands with both a barcode and a key attached. You can wear this band the entire time you are at the Yunessun Spa- as shown in the picture below. The way the onset works is anytime you purchase foods or drinks, foot spas, your wrist band will be recorded. If you by chance lose the band, you will be required to pay 2,000 yen.

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After receiving the bands, you will be introduced to a store in which you could rent swimsuits, towels or even purchase swimsuits. Before entering into the store, you will be required to remove your shoes. There are bags to store your shoes in. If you have tattoos, you are required to cover them up at the onsen. I would recommend that you rent a long sleeve shirt here for that purpose.

From the store, you will proceed straight and turn left. Once at the end, the only way to turn is right. There will be locker rooms designated for both men and women. The number on your band will be your locker number. Once you have changed into your swimsuit, you will through the other side. You may be greeted by staff who will tell you to "Have a great time."

Aegean Sea of Gods

Upon entering the themed spa park in the swim suit area, you will be introduced to the large Aegean Sea of God's bath. The clouds above gives one the impression they are in the ocean. Every 30 minutes, there is an entertaining show that involves water, light, and sound production in which bibles and fountains appear.

Wine Bath

My favorite bath was the wine. The ruby red colors resonate in the large pool and the smell of wine circulates in the air. The gigantic 11 feet tall wine bottle decor is positioned at the entrance of the pool. It provides an excellent background for Instagram worthy photos. Around 1:30 p.m., a staff member brought out bottles of wine and poured it in the hands of people in the pool. Next, the staff member poured wine on the body of the visitors. Other times that wine is added to the pool are 10 a.m. and 4 p.m.

According to tradition, Cleopathra and Queen Mary bathed in wine to rejuvenate and beautify their skin.

Green Tea Bath

Green tea is freshly made from in the mountains. The tea in the pool improves the circulation of blood and beautifies skin.

Japanese Sake Bath

Dripping from a huge cask is fresh Japanese sake, which creates a pleasant and comforting aroma.

Coffee Bath

The coffee bath is truly an experience as you bath in actual coffee that is extracted at low temperature. A course grinded drip is utilized to extract the coffee. The coffee provides relaxation, skin benefits, and recovers fatigue. At 1230, one of the staff members made coffee and poured it on individuals in the pool. It was quite an experience.

Dr. Fish foot Bath

In this bath, schools of small fish surround you like bees in a nest and eat the dead skin cells. If you have never experienced this fish foot bath, it will give you a tickling sensation. This bath costs 100 yen to use. the fish foot bath is available during certain hours-- 10:30 a.m. to noon; 2 p.m.- 3:30 p.m; and 4:30 p.m. to 5:30 p.m.

Green Terrace

The Green Terrace is a circular bubbling Jacuzzi that provides relaxation and peace.

Aroma Room

As you enter the aroma room, there is a mint aroma that instantly fills the air.

Rodeo Mountain Water Slides

One of the exciting moments at the theme park was the Rodeo Mountain Water Slides. There are three slides, but only one of them was open at the time. Whether it is summer or winter, you can enjoy a thrill on this water slide as you plunge into warm water, which is refreshing. To increase the speed while going down the slide, I crossed my arms. The minimum height to use this slide is 110 cm or

Cave baths

Inside the cave are several hot spring pools that increase in temperature as you move further into the cave. At the end of the cave are aquariums of fish and swaying jellyfish.

Outdoor Hot Spring with Scenic View

Wonderfully gazing at the stunning and beautiful view of the Hakone mountains and Sagami Bay while relaxing in the hot bath outdoor created a romantic scene. This 130 long outdoor bath will allow you to view the mountains from different angles.

Boxappy's Jungle Gym

The Boxappy's Jungle Gym is a kid's paradise.

Green Tea Ice cream

We ended our trip with some savory matcha ice cream. Matcha ice cream is popularly served in Japan. Whether it is spring, summer, fall, or winter, people are eating Matcha ice cream.


Mori no Yu (Naked Area)- Adults- 1,500 yen; Children- 1,000 yen

Elderly and disabled persons for Mori no Yu- Adults- 1,100 yen; Children- 500 yen

Yunessun Spa (Swimsuit Area)- 2,500 yen; Children- 1,400 yen

Elderly and disabled for Yunessun Spa- Adult- 1,700 yen; Children- 1,100 yen

Combined (Yunessun and Mori no Yu)- Adult- 3,500 yen; Children- 1,800 yen

Elderly and disabled for Combined- 2,200 yen; Children- 1,400 yen

Hours of Operation:

Yunessun Spa (swimwear area)

10 a.m- 6 p.m. on weekdays

9 a.m.- 7 p.m. on weekends and holidays

Mori no Yu area (no clothes area)

11 a.m. - 7 p.m.

11 a.m.- 8 p.m.

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