-Best Rate Guarantee-
Reservation

Born in May 2025

A secluded villa on 1,800 square meters of land



HAKONE KAIRAI is an adult's secluded rental villa limited to one group per day, nestled in the majestic nature of Hakone Sengokuhara. Just about 70 minutes drive from Tokyo. This supreme private retreat allows you to immerse yourself in nature and enjoy an open-air hot spring, a cypress sauna, and a spacious open-air terrace.
Meals are prepared by a chef who knows the local ingredients inside and out. A dedicated concierge will support your special stay tailored exclusively for your group.


Autumn Special
Two Meals, 15% Off (Sep–Nov)
Indulge in the Mysterious luxury experience
at Exotic Retreat Villa
An exquisite moment to
awaken your senses

Surrender yourself to an extraordinary place where the serenity of Japanese tradition meets the comfort of a luxury resort,
and to create a blissful memont that will satisfy your body, mind, and five senses.

Exterior view of Hakone Kairai

Appearance

A secluded retreat in Hakone, just steps from the Pampas Grass Fields of Sengokuhara. This elegant one-story villa stands on a spacious estate, offering complete privacy from the outside world.

Hakone Kairai's Living/Theater Room

Living Room

A theater-style living room with a vaulted open ceiling creates an airy sense of spaciousness, while a large white wall doubles as the screen. A powerful sound system delivers a truly immersive experience, and beyond the expansive windows lies a beautiful Japanese garden. For added comfort in winter, the room is equipped with floor heating.

Hakone Kairai's dining room with a sunken kotatsu-style table

Dining Room

In a serene dining area designed in the style of a traditional sunken kotatsu-style dining room, you can leisurely enjoy your meal or drinks while taking in the changing seasons.

Open-air Terrace

From the vast 70 square meters open-air terrace at the back of the villa, you can enjoy breathtaking views of Mount Kintoki. This open-air terrace also serves as a rejuvenating space for relaxation after a sauna, allowing you to fully harmonize with the surrounding majestic nature.

Hakone Kairai's open-air terrace
Hakone Kairai's private sauna

Sauna

In the private sauna filled with the soothing scent of Japanese hinoki cypress, you can also enjoy a löyly. The temperature is adjustable from 35°C to 110°C in 1°C increments. Spacious enough for five adults and is equipped with Bluetooth speakers. Just beside the sauna is a cold plunge, and you can move freely between the spacious open-air terrace, the indoor bath, and the open-air hot spring bath.

Open-air Onsen

An open-air bath fed by 100% natural hot spring water, surrounded by the lush highlands. The “Sodium-Chloride springs” has excellent heat-retaining and bactericidal effects, keeping your body warm long and helping to prevent chills. Its soft alkaline water (pH 8.6), rich in Metasilicic acid (a natural moisturizing ingredient), leaves skin smooth and refreshed. And making it “Hot springs for beautiful skin”.

 
Hakone Kairai's 100% natural hot spring open-air bath (rock)
Hakone Kairai's powder room and cypress indoor bath

Hinoki Bath and Powder Room

The shower room, integrated with a powder room, features a hinoki cypress indoor bath with reheating function and a small refrigerator. From the bedroom, you can move seamlessly to the open-air hot spring bath, sauna, and open-air terrace. Premium linens and high-quality original amenities are thoughtfully provided for your comfort and allowing you to arrive empty-handed. Sauna hats are also available for your use. (*Please note that swimwear is not provided)

Hakone Kairai's bedroom

Bedroom

The twin bedroom with two spacious semi-double beds featuring a warm and dreamy atmosphere created by soft indirect lighting, exposed ceiling beams, and textured wall materials. The spacious 23 tatami mats of Ryukyu tatami mat space can also be set up with futons for additional guests. For groups of three or more, the room can be divided with an accordion curtain for added privacy. A Bluetooth speaker is also available for your enjoyment.

Commitment to Hotel and Ryokan quality
for Comforts and Coziness
Profound hospitality that embraces you
with quiet comfort and genuine care

Through heartfelt consideration that goes one step beyond,
we are dedicated to supporting a stay that is uniquely yours.

Tea accompaniment
Dedicated Concierge
Upon check-in, our dedicated concierge will introduce the facilities and services. To ensure your privacy, we will limit access to your room during your stay. Meal service is offered for dining plans, as well as housekeeping and replenishment during extended stays. Kindly advise at booking if you do not require these services. We are also happy to assist with special celebrations or surprise arrangements. Please feel free to consult with us at any time.
High-quality amenities
Original Products
We offer a range of high-quality skincare and body care products, meticulously developed with a focus on Made in Japan quality and a luxurious feel and fragrance. Formulated with generous amounts of gentle, natural ingredients, each product is carefully produced in small batches to ensure both quality and freshness. We are committed to environmentally responsible product development and delivery.
Premium Linens
Premium Linens
Our linens are carefully selected for their materials, craftsmanship, and quality. We provide soft, highly absorbent bathrobes, comfortable wrinkle-resistant samue (traditional Japanese loungewear), and pure white tabi socks. Each item is chosen for its refined functional beauty, environmental consideration, and soothing comfort for body and mind.
Bluetooth Speaker and Power Unit
Wi-Fi/USB power port
Wi-Fi is available throughout all rooms and on the terrace. USB power ports are also provided at the bedside. Please feel free to contact your dedicated concierge, if you need additional ports or equipment. We will be happy to assist.
Sound system
Audio/Visual Equipment
The living room is equipped with a 4K projector and a premium Dolby Atmos soundbar, allowing you to enjoy immersive, high-quality audio and visuals.
Speakers are also installed in the bedroom and sauna, so you can enjoy your favorite music wherever you are.
Espresso machine
Kitchen/Mini-bar
The kitchen features a large refrigerator and freezer, microwave, oven toaster, electric kettle, espresso machine, and essential tableware and cutlery. For safety, open flames and cooking with outside ingredients are not permitted, though guests may bring their own food and drinks. For those on a dinner course plan, the minibar is all-inclusive, with additional beverages available for a charge.
Facilities Theater-style living room, Dining room with sunken kotatsu table (seats 6), Bedroom (twin beds + 23 tatami mats of Ryukyu tatami mats), Fully equipped kitchen, Open-air terrace, Open-air hot spring bath (rock), Indoor Japanese hinoki cypress bath, Private sauna with a cold plunge, 2 toilets, Garden.
Parking is available for 2 cars. Please contact us if you require parking for 3 or more cars. We will arrange it for you.
Equipments BALMUDA The Range oven microwave, Toaster, Electric kettle, Nespresso Genius coffee machine, Refrigerators (in both the kitchen and bathing area), Air purifier, Air conditioning, TV, Projector, Bluetooth speakers, Wi-Fi, Humidifier (in the bedroom), Hair dryer, among others.
Amenities Shampoo, Conditioner, Body wash, Facial cleanser, Moisturizing lotion, Essence lotion, Cleansing oil, All-in-one gel, Bath towels, Face towels, Bathrobes & Traditional samue loungewear, Tabi socks, Sauna hats, Cotton swabs, Cotton pads, Hairbrushes, Toothbrushes, Razors, among others.※Please note that swimwear is not provided.
The luxury of enjoying seasonal delicacies
that can only be found here

Enjoy a meal prepared by a chef who knows the local ingredients inside and out,
and take your time as you watch the beauty of the changing seasons.

Private villa stay
Limited to one group per day

The entire villa is available for exclusive use by groups of 2 to 4 guests.

Guests may choose from the following styles of stay: “One night with 2 meals (a full course dinner and breakfast)”, “One night with breakfast”, or “Room only”.

HAKONE KAIRAI

Contact

Address

1246-469 Sengokuhara, Hakone-machi, Ashigarashimo-gun, Kanagawa 250-0631

Access

・About a 20-minute drive from Gotemba I.C. on the Tomei Expressway
・About a 55-minute drive from Atsugi I.C. on the Tomei Expressway
※Please note that the slope on the “Naka-dori” side is steep, which may pose a risk of scraping your vehicle. We kindly recommend approaching from the “Prince Street” side.
SENGOKUHARA WEATHER