Tickets to Hakone Kowakien Yunessun Hot Spring

Soak, splash, and unwind at Hakone’s playful spa resort with themed pools and mountain views.

• Everything you get: Enjoy full access to the YUNESSUN area’s indoor and outdoor pools, including the kid-friendly BOXAPPY’s Jungle Gym, cave baths, Dragon’s waterfall, The Flowing Pool, Aegean Sea of Gods pool, Green terrace (three baths and Jacuzzi), Finnish sauna, and BOXAPPY’s Splish-Splash indoor pool for kids. Saunas are available (dry for men, mist for women), and the facility sits 600m above sea level for refreshing mountain air.
• Why choose this: Dive into Japan’s most imaginative spa experience—perfect for families, friends, and anyone looking to relax or play in a unique setting.
• Upgrades: Unlock themed baths (wine, coffee, green tea, sake) or access the traditional Mori no Yu hot spring area with open-air baths, pottery baths, and private rooms for an elevated spa escape.

Inclusions Access to the YUNESSUN area

• Themed baths: wine, coffee, green tea, and sake

• Indoor and outdoor pools

• Kids’ play zones

• Cave baths

• Waterfalls

• Saunas

• Aegean Sea of Gods pool

Access to the Mori no Yu hot spring area:

• Open-air baths

• Cypress bath (female only)

• Pottery bath

• Indoor baths

• Gender-specific saunas

Exclusions

• Dr. Fish foot bath (¥300/person additional cost)

What to bring

• Bring a valid photo ID to match the name on your booking if requested at the entrance.
• Swimwear is required in the YUNESSUN area; bring your own or rent on site.
• Bring your own towels or rent them at the facility, as towels are not allowed in the baths.
• Consider bringing a change of clothes and toiletries for after your visit.

What’s not allowed

• Towels are not allowed in any of the baths, especially in the Mori no Yu area and cypress bath.
• Drinking of bath liquids (wine, coffee, green tea, Japanese sake, etc.) is strictly prohibited.
• Tattoos are not permitted in the Mori no Yu area, except in reserved private rooms with baths. Covered tattoos are allowed in the YUNESSUN area.
• Large bags, outside food and drinks, and glass containers are not permitted inside the facility.
• Pets are not allowed, except for registered service animals.
• Children under 3 years old are not permitted in the Dr. Fish foot bath.

Accessibility

• Some baths and facilities are gender-specific (e.g., cypress bath for females, dry sauna for men, mist sauna for women).
• The facility is not fully wheelchair accessible; certain areas and baths may have limited access for guests with mobility needs.
• Accessible restrooms are available, but please check with staff for specific accessibility support.

Additional information

• The outdoor hot spring in the YUNESSUN area is closed during winter due to freezing temperatures.
• The Dr. Fish foot bath is available for an additional fee and has a minimum age requirement of 3 years.
• Private rooms with baths in the Mori no Yu area require advance reservation and may incur additional charges.
• Some facilities and special events (such as wine or coffee pouring) may require advance reservation or have limited availability—check the event schedule before your visit.
• Some areas and baths are illuminated at night for a unique atmosphere.
• The facility is located 600m above sea level in Hakone, Japan, and is open in all weather conditions.
• Please adhere to traditional Japanese bathing etiquette and all posted facility rules during your visit.