Kazusa-Ichinomiya Station × Nature Experience AccommodationRecommended Hotel·Ryokan

A vacation hotel offering an entire private cottage along the lush Isumi River, located in "Isumi City," just under an hour from central Tokyo. This area is known for its beautiful sea, rivers, and rich natural landscapes. Your day begins with the gentle morning sunlight streaming in and ends with a sunset that paints the Boso Peninsula mountains in golden hues. How you spend your time here is entirely up to you—relaxing leisurely in a cozy cottage or enjoying moments of rejuvenation in the sauna. Nestled quietly by the riverside, this private cottage is more than just accommodation. Though only about an hour away from Tokyo, it serves as both a retreat for healing your mind and body and a gateway to an invigorated new chapter of life. Welcome to By The River Isumi!

A fully private, luxury villa available for exclusive use for up to 19 guests (10 adults and 9 children). *If staying with 7 or more guests, please be sure to select the number of guests first.*“SEA-LIFE TSURIGASAKI” is a completely private, standalone villa located just a 5-minute walk from Tsurigasaki Beach, the surfing venue for the Tokyo Olympics. Each independent guest room is connected by a corridor that surrounds the pool and fireplace—an exceptionally luxurious layout. Enjoy premium Facility including a gentle, chlorine-free heated pool adjustable up to about 40°C (104°F) for year-round use, an outdoor jacuzzi, outdoor BBQ area, a gas sauna made with Japanese timber, and an underground cold plunge bath—creating an extraordinary escape from everyday life. The on-site skateboard park, lawn area, and breathtaking starry sky are also not to be missed. Set on a spacious 500-tsubo property (approx. 1,650 m²), this one-group-per-day private villa invites you to feel nature’s beauty as you forget daily life—and even time itself—while savoring the ultimate in relaxed luxury.

SANU 2nd Home is "another home" where your mind and body can relax, and your senses awaken.Step away from the busy city life to experience nature with all five senses and live a self-sustained lifestyle in this second home.SANU 2nd Home Ichinomiya 2nd is located at the southernmost tip of Kujukuri Beach. Known as a surfing paradise, it offers spots suitable for everyone from beginners to advanced surfers. The area also features schools, shops, and activities like SUP and beach yoga. Take a stroll along the shore or enjoy a moment at a coffee stand for some leisurely time.The two beautifully designed maisonette-style buildings are arranged as if reaching out to the sky. The exterior walls made of locally sourced Sanbu cedar exude warmth and blend harmoniously with the surrounding greenery.In the morning, grind coffee beans quietly on the terrace while listening to the sound of waves.At noon, play seasonal music playlists and immerse yourself in sound.In the evening, toast with natural wine while gazing at the sea tinged with soft crimson hues.At night, dive into a book for a quiet journey of thought.Your stay is entirely up to you.Find your perfect way to spend time here!

VILLALAGI is the ultimate hidden retreat, limited to one group per stay, nestled in the lush forests of Isumi City. Enjoy exclusive use of a vast private forest of over 500 tsubo, with no neighboring homes—an entirely secluded space where you can fully escape the everyday without worrying about noise, time, or prying eyes. In this special setting with complete privacy, the Accommodation features a rare top-of-the-line Magma Spa sauna system—exceptional for an Accommodation. Experience a luxurious “forest hideaway stay” with an open-air bath overlooking the woods and a covered outdoor BBQ terrace, where you can enjoy karaoke, movies, and music at your leisure.

Just one hour from Tokyo, open the door to an endless expanse of blue skies and white clouds, with the majestic Pacific Ocean reflecting the heavens. The sunlight pouring down hints at the beginning of a wonderful journey. Step into your Room, and the breathtaking view before you feels like a beautiful painting. Open the large wall-to-wall windows, and a refreshing sea breeze flows through. Enhancing your trip are a variety of activities: a large pool, tennis courts, a gym, and various sports to enjoy. The shallow beach with its soft sandy shore and exceptional water clarity is a favorite among families. To soothe the fatigue of the day, immerse yourself in the "Ancient Seawater Bath" sourced from 1.7 million years ago beneath Kujukuri. Enjoy three private baths, highly rated by couples, free of charge, and experience the gym's Löyly sauna. Savor the fresh seafood of Boso, prepared by skilled chefs, while gazing at a sky full of stars. Relax in this fulfilling spa resort. We offer a variety of Plans, including those with a pet Hotel, SUP experiences, and long-stay options. We look forward to welcoming you.

Exclusive luxury resort for one group per day, spanning 900 tsubo! Fully equipped with an open-air bath, sauna, 15m indoor pool, and stone spa. Features 5 bedrooms, a spacious living room, and an Asian-inspired space adorned with furniture imported directly from Bali. Enjoy a private villa experience with stargazing theater, BBQs, and bonfires for an extraordinary getaway.

An overnight nature theme park where you can play to your heart’s content! Join your favorite activities while glamping—meals and experience programs are included in the price, so all that’s left is to have fun. We offer activities that let you enjoy the seasons and local culture, such as rhinoceros beetle adventures, festival games, marble boating, and vegetable harvesting. All tents are fully equipped with beds, air conditioning, and a refrigerator. A stay packed with fun awaits you from check-in to check-out.Children’s rates at BUBRESORT are as follows: [Upper Elementary] Ages 9–12 [Lower Elementary] Ages 6–8 [Infants/Toddlers (with meals & bedding)] Ages 2–5 [Infants/Toddlers (no meals & no bedding)] Ages 0–1 *The number of children’s meals follows the meal conditions of the Plan.*

Surrounded by the gentle warmth and comfort of wood. ~ About a 5-minute walk to Ichimatsu Beach ~With the soft touch and natural scent of wood, “Wood Warmth” offers a soothing space that feels like forest bathing. Open the doors leading to the terrace and the indoors seamlessly connects to an open-air, café-style terrace where you can enjoy a special time. The indoor wood-burning stove also lets you enjoy making smoked dishes and baking pizza. Ichimatsu Beach is about a 5-minute walk away, and bicycles are available for rent—perfect for watching the sunrise or enjoying a seaside ride.

Have the breathtaking panoramic views all to yourself. A luxurious escape from the everyday. “Tenku” is nestled in a nature-rich setting surrounded by sea and mountains, perched on a dramatic cliffside plateau—an extraordinary, truly luxurious space where you can enjoy stunning scenery as if floating in the sky.On the “Panoramic Ocean-View Terrace,” seamlessly connected to the living room, you can soak in the open-air Tenku bath while gazing out over the vast ocean and beautiful sunsets, enjoy a BBQ or grill fresh fish over the outdoor hearth, and at night use the telescope to admire a sky filled with stars overhead.From morning to night, savor an experience you can only find here—moments that will never leave you bored.

~A serene lakeside accommodation surrounded by trees, available for private rental~ Enjoy nature to the fullest without worrying about privacy! 1 minute to the lake, 10 minutes to the sea. A private retreat space in a star-filled forest.

A hidden retreat nestled in a forest that feels like stepping into a storybook. Enjoy a luxurious, tranquil stay in a private villa surrounded by trees, where you can truly feel the breath of nature.“Mori no Oto” features an expansive garden in the heart of the woods, offering a space where you can experience beautiful seasonal scenery and harmony with nature. Enjoy an upscale outdoor experience with our all-weather BBQ house and an open, inviting bonfire area. We also have a spacious dog run, so you can play to your heart’s content and relax with your beloved dog. Take a walk through the forest, unwind in our Goemon-style bath, and spend your time just as you like while embracing nature’s gifts.