Hakone Kowakien Yunessun (1297 Ninotaira, Hakone-machi, Ashigarashimo-gun, Kanagawa Prefecture), which marked its 25th anniversary on New Year's Day 2026, is holding the special event "Yunessun Christmas 2026" to coincide with the holiday season.
The event includes a campaign offering half-price adult admission to guests who visit in full Christmas costumes, a seasonal bath and decorations that appear only for the holidays, and a special program with the facility's mascot. Christmas offerings are also available at the official hotel, Hakone Hotel Kowakien.
Half-Price Adult Admission for Christmas Costumes
Under the campaign "Oideyo! Christmas Cos-Wari!" (おいでよ！クリスマスコス割！), guests who visit in a full-body Christmas costume, such as Santa Claus, a reindeer, or a Christmas tree, can enter Yunessun, the hot spring facility where swimsuits are worn, at a special rate. Adult (junior high school age and up) admission, normally ¥2,500 to ¥2,800, drops by half to ¥1,250 to ¥1,400.
Holiday-Season Seasonal Bath and Decorations
The seasonal bath "Snow Fantasy Bath" (スノーファンタジー風呂) returns this year, with the theme "winter starry sky." Decorations evoking stars twinkling in the winter sky are installed on the ceiling, and the water surface turns a soft white, as if snow had settled on it. The area around the main spa 神々のエーゲ海 is also decorated for the holiday season.
Special Program "Boxappy's Bubble Snow Time!"
On select days, the facility's official mascot Hakoneko Boxappy (ハコネコ ボザッピィ, hereafter Boxappy) will hold the special program "Boxappy's Bubble Snow Time!" (ボザッピィのバブルスノータイム！). Snow falls to a bright, cheerful Christmas song that makes people want to dance.
Christmas at Hakone Hotel Kowakien
At Hakone Hotel Kowakien, the official hotel of Yunessun, a large Christmas tree about 4 m tall stands at the entrance. At the buffet restaurant Fontainebleau (フォンテンブロー), diners can help themselves to about 60 Japanese, Western, and Chinese dishes, plus holiday-themed items such as roast chicken and Christmas sweets.
"Oideyo! Christmas Cos-Wari!" Campaign Details
- Details: Admission to Yunessun, the hot spring where swimsuits are worn (swimsuit area), is offered at a special rate. Cannot be combined with other discounts.
- Period: Friday, November 20, 2026 to Friday, December 25, 2026
- Maintenance closure: Tuesday, December 8, 2026 to Thursday, December 10, 2026
- Eligibility: Guests who visit in a full-body Christmas costume
- How to use: On the day, come to the main front desk on the 4th floor in a full-body Christmas costume.
- Dedicated coupon: https://www.yunessun.com/ticket/detail/?CN=415952
Prices vary by date of visit. Please check the price calendar on the official Yunessun website: https://www.yunessun.com/
Notes
- The campaign is not available to guests who are not wearing a full-body Christmas costume. For a Santa costume, for example, a hat and a Santa suit (top and bottom) or a dress are required. There is no shoe requirement. Wearing only some items, such as a Christmas-themed outfit, hat, headband, or gown, does not qualify.
- At check-in, the campaign is not available if the Christmas costume cannot be recognized from outside, for example because of a winter coat.
- Guests must bring their own costumes.
Snow Fantasy Bath Details
Image for illustrative purposes.
A bath inspired by the dreamy night sky of winter.
- Location: Yunessun, the hot spring where swimsuits are worn, indoor "Turkish Hamam" (トルコ風ハマム) area
- Period: From Tuesday, November 3, 2026, for a limited time
- Hours: Weekdays 10:00 AM to 6:00 PM; weekends and holidays 9:00 AM to 7:00 PM
- Scent: Vanilla
Admission to the Yunessun swimsuit area is required: adults (junior high school age and up) from ¥2,500 (tax included), children (age 3 and up) from ¥1,400 (tax included).
"Boxappy's Bubble Snow Time!" Details
- Location: Around 神々のエーゲ海 in the indoor area of Yunessun, the hot spring where swimsuits are worn
- Dates: Sunday, November 22; Saturday, December 5; Saturday, December 12; Saturday, December 19; Friday, December 25; Saturday, December 26; and Sunday, December 27, 2026
- Time: Surprise performances, planned for about one or two times per day
Admission to the Yunessun swimsuit area is required: adults (junior high school age and up) from ¥2,500 (tax included), children (age 3 and up) from ¥1,400 (tax included).
- The special event may change in content or be canceled.
- Please be careful to keep smartphones and other electronic devices from getting wet, for example by putting them in waterproof cases.
Hakone Hotel Kowakien Christmas Stay Plan
Hakone Hotel Kowakien, the official hotel of Yunessun, offers a Christmas stay plan.
Winter Trip / Christmas Family Plan: Unlimited Access to Yunessun and Mori no Yu, 1 Night With 2 Meals (【冬旅/クリスマスファミリープラン】ユネッサン・森の湯入り放題～1泊2食付き♪)
- Period: Tuesday, December 1, 2026 to Friday, December 25, 2026
- Price: From ¥31,000 (bathing tax not included), per person when four guests share a Deluxe Room (50 sqm)
- Perks:
- All-you-can-drink alcohol and soft drinks at both dinner and breakfast
- Unlimited access to Hakone Kowakien Yunessun and Mori no Yu (森の湯), from before check-in to after check-out
- Plan page: https://go-fujita-kanko.reservation.jp/ja/hotels/fkg025/plans/10207851
Other stay plans suited to couples and group trips are also available. Please check the official website.
Hakone Hotel Kowakien is a next-generation resort hotel where guests can enjoy Hakone's hot springs, nature, and food. Guests staying at the hotel can enter Hakone Kowakien Yunessun and Mori no Yu as many times as they like during their stay, from before check-in to after check-out.
Official website: https://www.hakone-hotelkowakien.jp/
The Christmas tree is on display from Friday, November 20 to Friday, December 25.
Hakone Hotel Kowakien Lunch Buffet Christmas Fair (No Reservation Required)
- Period: Tuesday, December 1, 2026 to Friday, December 25, 2026
- Location: Restaurant Fontainebleau (フォンテンブロー), 1st floor, Hakone Hotel Kowakien
- Hours: 11:00 AM to 2:00 PM (closes at 2:30 PM), 90-minute seating
- Price: Adults (junior high school age and up) ¥4,500; elementary school students ¥2,900; young children (age 3 to preschool) ¥1,700 (tax included)
Menu
- Christmas Fair: Roast chicken with berry sauce; bok choy in crab sauce; seafood and penne gratin; meatloaf with mushroom sauce; financiers (plain and cacao); strawberry and tiramisu cream tart; Basque cheesecake
- Chef's recommendations: Freshly baked pizza; Kowakien chicken curry; Kowakien ramen; original sandwiches finished by the chef; nigiri sushi of the day; Chinese congee; seasonal pasta; fried horse mackerel; French toast made with Hakone Kowakien's original raw-style white bread (生食パン); salad bar; and more
- Children's dishes: Children's curry; Furi Furi Potato (フリフリポテト); udon; omelet rice; tamagoyaki (rolled omelet); baby food (from 5 months); and more
- Drinks: Soft drinks, coffee, tea, and more
- Alcohol: Draft beer, wine, shochu, sake, and more
The menu may change without notice. No reservation is required.
About Hakoneko Boxappy
A cat who lives in the forests of Hakone. Fond of hot springs, Boxappy takes its name from its box-like shape.
- Name: Hakoneko Boxappy
- Breed: Hako Tissue Fold (Hako family), with a yellow body
- Special skill: Dancing the samba
- Personality: Friendly and affectionate, always cheerful, though a little absent-minded, so it sometimes makes mistakes and feels downhearted as a result
Boxappy profile details: https://www.yunessun.com/boxappy/
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