Nationwide × Accommodation With Self-Löyly SaunaRecommended Hotel·Ryokan - 21Page Number

In July 2025, "Luxe Villa" opened in Karuizawa, Onihata. This private villa rental offers a new travel style where you can stay as if you were living there. Surrounded by abundant nature, enjoy a relaxing escape from everyday life. The simple yet refined space is perfect for short stays, long-term visits, or remote work. Experience a special stay in Karuizawa with the feeling of having your own private retreat.

SANU 2nd Home is “another home” where your mind and body can truly rest and your senses can open up.Step back from busy city life, feel nature with all five senses, and live by your own hands—this is a second home designed for that purpose.Among the SANU 2nd Homes across Japan, Niseko 1st is an ideal base not only for those who want to slow down and unwind in magnificent nature, but also for anyone looking to enjoy winter sports.Set on a highland overlooking Mt. Yotei, you’ll find clear streams, forests, and crisp air. In this expansive Hokkaido landscape, you can let your thoughts wander, read a book, or savor the luxury of doing nothing at all.In summer, walk through the woods and listen to the river’s gentle flow; in winter, be surrounded by a world of snow. Enjoy a stay that lets you feel Niseko’s unique seasonal changes.This standalone cabin seamlessly connects daily living with nature by integrating the living area and balcony into one continuous space. A cabin that reflects care for the plants and animals living in mossy forests—and love for the Earth. With an open workspace plus a kitchen and dining area spacious enough to cook together with family, friends, or your partner and share meals comfortably, it offers a rich living environment that feels like an extension of everyday life. Sunlight pours in through skylights, while windows throughout ensure natural scenery is always within view—bringing inside and outside together for a lifestyle lived alongside nature.Morning: Quietly grind coffee beans on the terrace as sunlight filters through the trees.Afternoon: Put on a seasonal music playlist and let yourself sink into sound.Evening: Warm up slowly in your private sauna, then step outside to breathe deeply in fresh air.Night: Add logs to the fire as you lose yourself in thought.How you spend your time is entirely up to you.Find what feels just right for you.

SANU 2nd Home is “another home” where your mind and body can truly rest and your senses awaken.Step back from busy city life, reconnect with nature through all five senses, and enjoy a second home designed for living with your own hands.Among the SANU 2nd Home locations across Japan, Karuizawa 2nd is an easy 20-minute drive from Karuizawa Station. Set amid majestic mountains and forests, this area—beloved as a summer retreat—blends nature and culture, with its own distinctive food scene and community.This standalone cabin seamlessly connects everyday living with the outdoors by integrating the living area and balcony. A cabin that expresses care for the plants and animals of the mossy forest—and love for the Earth. With an open workspace plus a kitchen and dining area spacious enough to cook and share meals with family, friends, or a partner, it offers a comfortable, well-equipped living space that feels like an extension of daily life. Sunlight pours in through skylights, while windows throughout frame natural scenery from every corner of the Room—bringing inside and outside together for a life lived alongside nature.In the morning, quietly grind coffee beans on the terrace as sunlight filters through the trees. In the afternoon, play a seasonal music playlist and let yourself sink into sound. In the evening, toast with natural wine while listening to insects sing. At night, add logs to the fire as you drift into thought.How you spend your time is entirely up to you. Find what feels just right for you.

The breathtaking view of Oshima Island and the azure sea, an unobstructed sky, and a serene forest wrapped in lush greenery. Experience this stunning scenery at the private villa "Gran Atagawa" in Izu-Atagawa. Perched on a hilltop, the villa offers panoramic views of majestic nature that changes with each season. Indulge in luxurious moments while gazing at the sparkling blue sea and Oshima Island. The interior features a private bath using natural Onsen water, along with a fully equipped sauna and cold plunge pool. At night, enjoy movies or videos in the theater space with a large projector screen. With four bedrooms accommodating up to 16 guests, it is perfect for family trips, group gatherings, or multi-generational stays. Sophisticated interiors and comfortable spaces add charm to your special day. Located about 8 minutes by car from Atagawa Station. Escape from your busy daily life to this place of relaxation and rejuvenation!

■ Wooden Architecture in Harmony with Nature by Fumihiko Sano Studio "GEOSPOT MOTOHAKONE," designed by architect Fumihiko Sano, is located in Motohakone, surrounded by Lake Ashi and the Hakone Volcano. The design incorporates abundant use of wood both indoors and outdoors to create a landscape befitting Hakone's history and nature. ■ Private Space Like a Hidden Retreat All guest rooms feature natural flowing simple sulfur Onsen sourced from Motohakone Onsen. Relax while enjoying views of the courtyard garden without worrying about time. The second floor offers a private sauna, cold bath, and terrace for outdoor relaxation. Experience deep rejuvenation through unique "Löyly" combining breathing techniques and hydrotherapy crafted by "madsaunist." ■ BBQ Enjoy BBQ on the outdoor deck. Bring your favorite ingredients for a free-spirited experience or choose from curated sets featuring game meat selected by Odawara's "Hasegawa Gibier Butcher Shop" or local vegetables harvested at "Seisho Umikaze Farm." (Grill rental available with Reservation) ■ Fine Beverages As a welcome drink, enjoy Hakone’s only craft beer, "GORA BREWERY." Natural wine can also be pre-ordered upon request. Local beverages enhance your stay’s lingering charm in harmony with this land’s atmosphere. *Please note that food, drink, and activity Reservations are expected to open sequentially (from November onwards). Due to operational reasons, these may need to be booked directly with the Facility instead of via IKYU.com.*

SUITE VILLA SHOU is a one-group-per-day private villa in an exceptional location just a 1-minute walk from Lake Biwa, featuring a seamless design that unites the double-height living room with an outdoor terrace. After refreshing body and mind in the custom-designed authentic sauna or jacuzzi, unwind in the raised tatami Japanese-style room, enjoying a bright, open space where indoors and outdoors flow together. Multiple highly private bedrooms and a functional double-bowl vanity support comfortable stays for larger groups, while BBQs and campfires on the terrace create special moments that deepen bonds with your closest companions. With refined design and well-appointed Facility features, this hidden retreat promises an unforgettable holiday that goes beyond an ordinary stay.

Earthboat is an outdoor Hotel with a private sauna, designed for spending time in nature. Private rental cabins are arranged around a pond in the countryside, each with its own independent private area. Within your area, you’ll find a guest room with beds and bathroom facilities, a sauna, cold/hot baths and an outdoor relaxation space, plus an outdoor living area where you can enjoy BBQs and a campfire. Pets are welcome in all cabins. Some rooms also include a private dog run, so you can relax and enjoy nature together with your beloved companion.

Quiet TOKYO offers an exceptional space befitting a premier residential neighborhood, promising deep relaxation and an escape from the city’s bustle.A residence-like setting unlike any Hotel.The convenience and mobility only the city center can offer—something no countryside villa can match.And a luxurious experience you won’t find anywhere else.Bringing all of this together, we present a first-of-its-kind premium stay,offering you a richer time than ever before.More than just rest,spend a fulfilling moment at Quiet TOKYOto take your next step forward.

Nestled along the calm seaside of the Miura Peninsula, “Retreat ~NAGAI BASE~” is a hidden villa designed to capture a sense of playful sophistication for adults. Inside, a refined industrial interior is accented by warm brick walls. A theater-style living room with a large projector and a beautifully functional kitchen equipped with the latest appliances create an extraordinary space to unwind. The highlight is an authentic barrel sauna on the wooden deck. Surrounded by the scent of natural wood, enjoy self-pouring löyly to relax body and mind, then cool down in the chiller-equipped cold bath and savor open-air relaxation with the sea breeze for an exceptional sauna experience. Take in panoramic ocean views from the second-floor terrace and enjoy a free-spirited, luxurious getaway with friends or family—far from everyday life.

Tokoro Hotel JUJI is a private, one-group-only Accommodation set in the great outdoors of Yoro Valley, Ichihara City, Chiba Prefecture, featuring a 150+ m² traditional house and earthen storehouse, plus an open-air bath and sauna. Just 60 minutes from central Tokyo—enjoy private luxury in the deep forests of Chiba.Step away from the busyness and noise of everyday life, and why not enjoy the night for once? No need to think about anything. Deep rest is waiting for you.This Accommodation has been renovated into a Hotel by making the most of the local climate and character of the area, transforming a traditional house over 150 years old. We look forward to welcoming you to a space where no one will disturb you.

Nestled on the northern foothills of Mt. Asama, Kita-Karuizawa is known for its cool, refreshing air. This designer villa—limited to one group per day—was created in an extraordinary setting: a vast private woodland of about 1,000 tsubo with a stream running through it. The open single-story home (3LDK) offers over 100 sqm of space and accommodates up to 10 guests, providing a luxurious retreat perfect for an unforgettable getaway with your loved ones.The symbol of this Accommodation is the “treehouse,” accessed via a suspension bridge from the wooden deck. Surrounded by the untouched forest of Kita-Karuizawa, stepping into this hidden treetop hideaway brings an exceptional sense of immersion—feeling truly at one with nature. At night, enchanting lights and the glow of a campfire illuminate the trees, drawing you into a fairytale-like world of quiet serenity.On-site, you’ll also find an authentic Finnish sauna by HARVIA and a cold plunge bath with chiller support—even suitable for single-digit water temperatures (°C). Outdoor relaxation wrapped in the scent of pristine woods at Mt. Asama’s foothills and the natural sound of flowing water delivers an unparalleled sense of deep renewal found only here.Cross the wooden deck and open the treehouse door to discover a secret base that brings out the child in everyone. Immerse yourself in the magical forest scenery of Kita-Karuizawa and enjoy an extraordinary escape to your heart’s content.

Nestled on the northern foothills of Mt. Asama in Kita-Karuizawa, where crisp, cool air drifts through the trees, COCO VILLA Kita-Karuizawa 02 is a private villa limited to one group per day—perfect for an extraordinary getaway with your dog. Set on a vast 1,000-tsubo estate (approx. 3,300 m²) with a gentle stream running through it, this newly built single-story home (over 100 m² / 3LDK) offers a dog-first space where your loved ones can relax comfortably and safely.In front of the villa lies a private dog run spanning an impressive 378 m². With open skies peeking through the trees and sunlight and breezes flowing freely, you can unwind on the wooden deck while watching your dog run off-leash to their heart’s content.Inside, you’ll also find an authentic sauna equipped with a HARVIA electric heater and a cold plunge bath with chiller. Enjoy outdoor relaxation on the terrace surrounded by lush forest for the ultimate reset. Group stays are also possible by booking both this villa and neighboring Villa 01 together. Savor an exceptional resort stay that deepens your bond with your dog.

COCO VILLA Hakone Sengokuhara is a private rental villa nestled in the tranquil resort area of Sengokuhara, Hakone—just far enough from the busy tourist spots to let your mind and time unwind. This chic Japanese-modern home (3LDK) accommodates up to 12 guests. Beyond the large windows, a spacious garden and trees spread out, allowing you to relax in peace without worrying about outside eyes. In the garden, you’ll find a rare egg-shaped sauna by BURROW and an authentic bonfire area. After refreshing in the sauna’s gentle heat, enjoy a deeply satisfying moment with a cold plunge bath and outdoor air bathing. At night, watch the flickering flames and savor the simple luxury of unhurried conversation. Inside, thoughtful features such as a projector and a large custom kitchen table with a bar-like ambiance make gathering together especially comfortable. Enjoy a refined getaway where you can stay as if living at your own pace—with close friends or family.

Karatsu, a castle town rich in history. Tucked away in one corner, “Himorogi” is an exclusive private villa where the comfort of a getaway retreat meets the excitement of a first-class Hotel.In our signature private sauna, enjoy self löyly and sink into the cold plunge bath—then breathe in the crisp air for a truly special moment of deep relaxation.With lofts and hidden nook spaces, our playful guest rooms are filled with an open, soothing atmosphere that helps everyone unwind—children and adults alike.Because you have the entire property to yourself, you can laugh and play as loudly as you like or spend time with your dog without worrying about anyone else’s eyes.Surrounded by carefully curated air and ambiance, cherish precious days with those who matter most. A new hideaway to Clear your mind from everyday life is here.

Sunrise lighting up the mountains, crisp clear air, and a sky full of stars. A quiet, luxurious sense of time flows here—so peaceful you may forget the clock.Built with natural Kiso sawara wood from Nagano and plaster walls made from natural materials, the space feels as comfortable as being in the forest. Enjoy a large hinoki cypress bath, a private panoramic sauna where you can take in the view, and a spacious wooden deck—perfect for creating special moments with family and friends. Take a deep breath with both body and mind, and enjoy a stay immersed in nature.

An expansive private villa of approximately 485 m², featuring free-flowing natural Onsen, an all-weather Onsen pool, and a ganbanyoku sauna. In a completely private setting with no interruptions, enjoy a blissful stay filled with exceptional cuisine and soothing baths. A secluded resort for adults to experience luxury beyond indulgence.

A private, entire-rental cabin nestled in a deep forest surrounded by larch trees at an elevation of about 1,000 m. Every cabin features an open-air natural Onsen bath fed by the same hot spring source as the renowned “Jippuku-no-Yu,” along with an authentic Finnish-style private wood-fired sauna. Also included are a cold plunge bath, an outdoor relaxation area, and an outdoor living space where you can enjoy BBQs and a campfire. All cabins are pet-friendly, and your beloved dog is welcome to join you even on the bed. Soothe yourself with the Onsen and sauna as you immerse both body and mind in the stillness of the deep forest—enjoy a luxurious day away from everyday life.

A private villa set on a vast 1,389 m² property, surrounded by dappled sunlight and crisp, clear air.The outdoor living area, sheltered by a deep roof, can be enjoyed in any weather—making it easy to relax outdoors at any time.From the crystal-clear stillness of morning to the warmth of gathering around a fire at night, the forests of Karuizawa will turn your stay into lasting memories.With carefully selected interiors and original curtains, this thoughtfully designed space offers both comfort and character—enjoy precious moments with family and friends, along with your beloved dog.

A place to spend time from the viewpoint of a resting bird—Tree Nest Happudai. Beyond the windows, leaves sway and specks of light shimmer as nature and time flow gently.Enjoy a raised living area that makes you feel like a squirrel or a little bird, and an airy loft-like floor where the breeze passes through. In these cozy spaces, carefully chosen interiors will soothe and enrich your spirit.Put down your phone, take a deep breath, and surrender to the quiet with your dog. A hidden retreat that fits within arm’s reach. Stretch on the terrace—talk, read, or simply do nothing at all.Savor the luxury of doing nothing, embraced by the forest.

Indulge in an authentic private sauna in your room, available anytime during your stay. After your sauna session, enjoy a substantial Shigaraki-ware tub that can be used for a cold plunge or a warm bath—giving you the ultimate hot-and-cold contrast bathing experience all to yourself. Unwind after your bath or in the evening in the refined living area, where the soothing flames of a modern fireplace create a relaxing ambiance. In the bedroom, Simmons’ top-of-the-line “Beautyrest LUXE” bed ensures exceptional sleep. Enjoy a luxurious retreat designed for adults seeking complete privacy and tranquility.