Kitagawa Onsen · Atagawa Onsen × Accommodation With HumidifierRecommended Hotel·Ryokan

Reopening on November 1, 2025 as a small luxury Accommodation where every Room offers an ocean view and a private open-air bath with free-flowing hot spring water.Beyond the rising steam lies the horizon of Eastern Izu, where sea and sky melt into one. Listen to the soothing surf, and on moonlit nights a magical “Moon Road” appears across the water.Renowned hot spring water—300 liters per minute—flows from two private sources, gently easing both body and mind.Experience “Japanese cuisine of sea and time,” inspired by Izu’s climate and memories. Crafted by our head chef trained at long-established restaurants,each course is beautifully complemented by Sommelier Excellence–selected wines and local sake for a lingering finish.With only 16 Rooms, we offer complimentary room service—timeless new luxury unique to nostalgic Atagawa.

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.

Bousui is located in Kitagawa Onsen on the east coast of the Izu Peninsula. True to its name, the breathtaking views overlooking Sagami Bay reveal the grandeur of each season and bring a sense of calm to every traveler. About 100 meters from the Facility, right by the shoreline, you will find Kuroneiwa Bath, one of the very few seaside open-air baths in The whole country. The sunrise seen from this open-air bath is truly exceptional. In addition, Bousui offers private gazebos where you can enjoy sweeping ocean views as if they were yours alone—an experience unique to Bousui.

All guest rooms feature open-air baths with ocean views, offering a prime location overlooking the Izu Islands, including Izu Oshima floating in the Pacific Ocean. At our restaurant, we use seafood from Sagami Bay and carefully selected ingredients from Izu to offer creative Western course menus, Japanese kaiseki-style courses, and shabu-shabu courses. Drinks at the restaurant, lounge access at the café terrace, and in-room refrigerator items are included in the accommodation rate, allowing you to enjoy a comfortable resort stay with magnificent views.

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.

Atagawa Ocean Resort is located along the coast in atmospheric Higashiizu Town, Shizuoka. On clear days, you can enjoy views of the Izu Seven Islands, including Izu Oshima, Niijima, and Miyakejima. Sea fishing and marine sports can be enjoyed year-round, and the area becomes lively with beachgoers in summer.All 75 Rooms are oceanfront, offering magnificent views of the Pacific from every Room. We also offer dog-friendly Rooms where you can stay with your beloved dog, as well as a dog run.Our ocean-view restaurant features a wide selection of dishes made with abundant seafood from Higashiizu, served as a buffet or course meals. The property is also well equipped with various Facilities such as a pool, game corner, and dog run. Enjoy wonderful moments to your heart’s content with family and friends.Nearby attractions include Atagawa YOU-Yu Beach (“Atagawa YOU湯 Beach”), just a 5-minute walk away. There are also many fun spots such as Izu Animal Kingdom and Atagawa Tropical & Alligator Garden. Kawazu Cherry Blossoms—famous for early blooming—are about 30 minutes away by car; the spectacular blossoms along the river are not to be missed.

Akazawa Guest House, surrounded by crystal-clear seas and unspoiled nature, is a refined Accommodation where you can enjoy a private stay in a serene setting. On an expansive estate of over 1,000 tsubo, we offer 15 guest rooms with open-air baths. We also feature detached villas equipped with private saunas in the room. Each room overlooks a beautiful Japanese garden and the surrounding landscape, showcasing the beauty of Japanese architecture through details such as Ajiro-woven ceilings and Juraku plaster walls. The interior is also designed in calming traditional Japanese style, with a large public bath featuring deep ocean water and private dining rooms where you can savor carefully crafted Japanese cuisine centered on locally sourced ingredients. In a space that harmonizes with Akazawa’s natural surroundings, enjoy a soothing stay as time passes quietly by.

Spectacular panoramic open-air bath overlooking Sagami Bay and Izu Oshima. Luxurious buffet featuring "local gourmet × seasonal flavors" crafted by our head chef. Newly added "barrel sauna," "live kitchen," and "private open-air baths in guest rooms." Unlimited "ikura" (salmon roe) available daily!