Nationwide × Accommodation With Splendid Alfonsino CuisineRecommended Hotel·Ryokan for family trips

In addition to the appeal of our “dining-focused Accommodation” cultivated since our founding, Hamanoyu is committed to providing travel experiences tailored to each guest and delivering memorable service.

An Accommodation standing right on the vast ocean, with ocean views from every Room. As far as the eye can see, sea and sky create a truly breathtaking panorama. From the large public bath and dining area…from every corner, enjoy time spent with spectacular views. Cuisine features our signature fluffy simmered golden eye snapper, along with an abundance of freshly caught seafood. For Onsen bathing, we offer a variety of Facility options to enjoy a bath-hopping experience, including the large public bath, a dedicated bath building, and private open-air baths. The gender-swapping panoramic open-air bath “Sora” offers an exquisite moment—facing the horizon while surrounded by sea and sky… Ocean-view Rooms include 24 relaxing Japanese-style rooms, 13 Japanese-modern rooms with an Onsen 전망-view bath, and 20 Japanese-modern twin rooms. Sunset, a sky full of stars, sunrise…we’ll take you away from the everyday. Please enjoy a leisurely holiday that feels like “a feast for the heart.”

Founded in the second year of the Taisho era, this Property has been reborn as a high-quality space where you can relax with your beloved dog. The panoramic bath overlooking Mount Genji offers a renowned hot spring known as the "Bath of Longevity and Success." The interior is designed to ensure safety and comfort for your dog, and the spacious Japanese-modern guest rooms with semi-open-air baths provide a luxurious and refined space tailored for guests traveling with their dogs. The creative kaiseki cuisine, crafted with seasonal ingredients, features exquisite dishes brimming with the blessings of Izu's mountains and seas. This Property, with over 100 years of tradition in "cuisine" and "hospitality," has evolved into a high-quality retreat that is also "dog-friendly."

"Gyo Sai Nagomi no Yado Sansui" is an Onsen Property featuring a "Main Building" with traditional Japanese charm and a "Villa" with semi-open-air baths and terraces exuding wooden warmth. Enjoy luxurious moments while gazing at the orange-tinted sunset. Dinner is served in private dining rooms, featuring dishes prepared with local ingredients such as Ise lobster, abalone, and Kinmedai fish.

"Omuro no Mori Gyokusui" is a Property with nine Rooms, located on a hill in Izu Kogen, offering a view of the sea. Gyokusui was born in the land of Izu Atagawa over a hundred years ago. Since then, it has spanned four eras, cherishing the unchanging essence that remains constant, while continuously evolving to meet the satisfaction of our guests. Rooms, Onsen, cuisine, the Property itself, and our hospitality— we weave together the unchanging and the ever-changing, pursuing greater satisfaction for our guests. Embrace the story of what changes and what remains unchanged. Please enjoy the tale we have woven for you.

"Welcome back, it's been a while." Such warm and simple greetings can still be heard here in Amatsu-Kominato, Minamiboso.

Set on a 10,000-tsubo estate beside a clear stream, Shimoda Central Hotel is a secluded satoyama retreat where you can unwind with abundant Onsen water from its own private source.Surrounded by timeless satoyama scenery that changes with the seasons, enjoy nostalgic, beautiful views, relax in the Onsen, and savor seasonal local ingredients. Spend “satoyama time” in your own way—an Accommodation where such indulgence is yours to enjoy.

Enjoy seasonal gourmet cuisine and relax in our large public bath with an open-air Onsen or private baths, perfect for solo travelers to families. Whether you're traveling with babies, children, as a couple, on a girls' trip, or celebrating a special occasion, we offer a wide range of stays to suit your needs. With activities like table tennis, karaoke, squash, simulation golf, and sauna available, it's also ideal for Multiple Night Stays or quiet retreats.

From the infinity water terrace that looks as if it merges with the sea, you can take in panoramic views of Izu Oshima and the other Izu islands. Relax in style on the resort chairs by the terrace and enjoy an elegant moment. We offer a wide variety of Room types, including Premium Rooms with an open-air Onsen bath, Premium Suite Rooms of 80 m² or more, and Standard Rooms with a shower room for casual stays.For dining, please enjoy our creative Japanese kaiseki course meals—made with local ingredients and carefully prepared by hand—at “Dining Takumi,” our top-floor restaurant with spectacular views.The lounge next to the lobby, available to all guests,was reintroduced under a new name as The Slow Lounge on Saturday, May 10, 2025.Along with the name change, our drink selection has been expanded.In addition to soft drinks, beer, wine, whisky, and other alcoholic beverages are now availableas free-flow service—enjoy as many refills as you like during opening hours.

Located in Minamiboso, about 60 minutes by car from central Tokyo, this traditional Ryokan is renowned for its cuisine. Its specialty is the "Edo-mae Susudate Mori Kaiseki" featuring fresh seafood from Boso. For a touch of luxury, we recommend the special rooms with private open-air baths. Enjoy stunning views of Tokyo Bay's nightscape from the bath.

In March 2023, the Japanese-style room with an open-air bath was renovated! In-room dining is also available.Including the popular barrier-free Western-style room with an open-air bath, there are a total of 22 rooms with open-air baths.All rooms offer ocean views overlooking a beautiful white sand beach with AA-rated water quality.After enjoying the spectacular onsen, savor the delicacies of the mountains and sea.Choose from two types of cuisine: charcoal-grilled seafood kaiseki and traditional coastal kaiseki.

A new-style Japanese resort that blends the tradition of an Izu Onsen Ryokan with Resort Hotel touches throughout. We welcome you with warm, refined hospitality worthy of the graceful name “Karen.” Our top recommendation is the scenic open-air bath “Aomi,” where you can enjoy abundant Onsen water flowing directly from our high-quality private source. Don’t miss the magnificent sunrise as you soak, or the “moon road” that appears on the sea on full-moon nights.

"Shioun" is a retro-modern Onsen Property with only 7 Rooms, located right in front of Kawazu Beach. As a sister Property to "Narashinonosato Gyokusui" and "Omuro no Mori Gyokusui," it was newly renovated and reopened in September 2022. All Rooms are equipped with ocean-view open-air baths, and we have maintained the tradition of Onsen water directly sourced from the spring and temperature control by our dedicated Onsen caretaker, a commitment upheld since the founding of Gyokusui over a century ago. For dinner, we offer Japanese kaiseki cuisine that delights both the eyes and the palate. For breakfast, we prepare Western-style dishes using seasonal ingredients from Izu. To fully enjoy our location, just a 0-minute walk to the beach, we provide "beach walking gear" for our guests.

Experience ultimate relaxation with two types of complimentary private baths, the only sand bath in Izu, seasonal gourmet cuisine, and luxurious rooms enveloped in tranquility. Enjoy heartfelt hospitality for a deeply rejuvenating escape for your mind and body.

A modern Japanese-style Ryokan has opened in the elevated villa area of "Millennia Katsuura" in Minamiboso, reminiscent of a tropical resort. Spanning a total area of 3,000 tsubo, it features a sunny and spacious garden terrace, a pool (for light-up viewing only), a pet hotel, and a dog run. Enjoy heartwarming holidays always together with your beloved dog.

A property located on a hill in the Atagawa Onsen area, offering ocean views from every room. Enjoy the skin-beautifying waters in various baths, including an open-air bath with panoramic sea views and a popular citrus bath for women. The specialty dish "Onsen Steam," made using the hot spring source, is a healthy and popular choice.

"ATAMI Kaihourou" is a small luxury resort with only four rooms, designed by Kengo Kuma to offer an extraordinary experience. Enjoy the craftsmanship of glass art, golden folding screens, and more, alongside breathtaking views.

New in July 2024: 14 Suite Rooms with Private Open-Air Baths! Stunning Ocean Views! Enjoy unlimited Onsen relaxation with free private open-air baths available 24/7. "Baths": Explore the on-site Onsen facilities, including 11 private open-air baths and 3 complimentary private saunas. "Dining": Savor fresh local seafood, featuring a boat platter with Ise lobster and simmered golden-eye snapper. "Rooms": Choose from a variety of accommodations, including rooms with open-air baths or saunas—Western-style, Japanese-style, or hybrid rooms—totaling 36 to meet your needs. "Pets": The annex offers three pet-friendly guest rooms on the first floor. Experience the ever-changing beauty of the sea and sky for a truly satisfying Atami getaway!

We cherish each guest and every journey, creating memories in our carefully designed five exclusive Rooms. Experience the warmth of Nagi no Sho, where serene elegance meets the comforting charm of the countryside.