Hot spring area around Lake Ashi × Accommodation With Training FacilityRecommended Hotel·Ryokan

A private villa nestled in nature, just a short walk from Hakone and Lake Ashi. The interior is a luxurious space where design and comfort are pursued to the utmost, featuring top-tier brands for everything from furniture to bedding. Enjoy an immersive golf simulator that faithfully recreates prestigious courses for thrilling games with friends. The VIP sauna, with its floor-to-ceiling glass walls, offers deep relaxation while gazing at the stunning seasonal beauty outside. The dining area boasts a striking monkey pod solid wood table, bedding by Simmons ensures supreme sleep quality, and Aesop bath amenities add a touch of elegance. With Lake Ashi nearby for leisurely strolls and breathtaking views of Mount Fuji close at hand, this villa perfectly blends extraordinary experiences with refined leisure and relaxation.

HOTEL THE MITSUI HAKONE will open within Fuji-Hakone-Izu National Park on a vast site of over 130,000 m²—once home to a cluster of Mitsui family villas. Here, where history and nature resonate in harmony, a new story begins, following the award-winning HOTEL THE MITSUI KYOTO. Gaze out to Mt. Asama and listen to the gentle murmur of the Jabone River. All 126 rooms—including suites and villas—feature Onsen water drawn from springs on the property. At the Thermal Spring Spa, Kowakidani Onsen and original treatments offer time to deeply unwind body and mind. A range of experiences that connect you with local culture and nature brings fresh discoveries to your journey. Enjoy Japanese cuisine including kaiseki, sushi, and teppanyaki; an all-day dining venue that reflects local bounty and the changing seasons; and a bar for savoring the lingering notes of your day. Immerse yourself in timeless Onsen waters and ever-changing natural beauty, and spend moments of quiet luxury found only here.

Perfect for multi-generational and extended-family trips, multiple families traveling together, friend groups, company retreats, and executive offsites—this villa lets a large group “gather together and truly relax.”1. Up to 21 guests / 6 bedrooms Comfortably sleeps 19 guests; up to 21 with extra air mattresses. In addition to six bedrooms, both the 1st and 2nd floors have their own living room and kitchen, so even large groups can relax at their own pace.2. Natural hot springs on both the 1st & 2nd floors Enjoy one indoor natural hot spring bath on each floor. Both are spacious enough for multiple people at once, allowing your group to split up and enjoy the onsen comfortably.3. Two saunas + an outdoor jacuzzi Choose between an outdoor barrel sauna and an indoor sauna on the 2nd floor. After your sauna session, unwind in the outdoor jacuzzi while taking in Hakone’s nature.4. Covered BBQ area The wooden deck features a covered BBQ space with two BBQ grills. Enjoy meals with family and friends in a setting that’s less affected by weather.5. Private gymnasium for guests An exclusive indoor gym is available for basketball and table tennis. Great for rainy days or trips with children—stay active without leaving the property.6. Comfortable facilities for large groups Three toilets total (two on the 1st floor, one on the 2nd) and three sinks/vanities total (two on the 1st floor, one on the 2nd). Together with two hot spring bathrooms, this layout helps prevent morning routines and bathing from becoming crowded in one place.7. Dogs welcome Up to three dogs (each up to 15 kg) are allowed. A private dog run is available on-site. Indoors, dogs may stay with you in the 1st-floor living room, 1st-floor gymnasium, and a Western-style room on the 1st floor. 　*Please contact us if you plan to bring more than three dogs.*8. Ideal for company trips & executive offsites too Equipped with fiber-optic Wi-Fi, a large whiteboard, and a projector. Hold meetings during the day, enjoy BBQ from late afternoon onward, then relax at night in the hot springs or saunas—all within one property.Play together during the day; BBQ in the evening; then head to the hot springs or saunas at night.More than just a base for sightseeing in Hakone—this is an entire private villa where spending time together becomes part of your trip experience itself.

The guest rooms offer a spacious area of approximately 40 square meters. All rooms are equipped with a 24-hour accessible Onsen bathroom and Wi-Fi. From the restaurant, you can enjoy a panoramic view of Hakone's famous outer rim mountains and Sagami Bay on clear days. Additionally, the west wing 'Liberty' features Facilities such as a gym, pool, and a spa utilizing Hakone's Onsen water effectively, perfect for enjoying with family, couples, or friends. Conveniently located, it's about a 5-minute walk to the Onsen theme park Hakone Kowakien Yunessun.