Overview
Kamogawa Grand Hotel gives you a full seaside resort stay on the Pacific coast of Chiba Prefecture. You step from the garden directly toward the shore, with the sound of waves and wide ocean views shaping your time from morning to night. Many rooms face the sea, while selected rooms look toward the pine forest, giving you a choice between open coastal scenery and a greener outlook.
You can reach Kamogawa from Tokyo in around two hours by train, making the hotel an easy choice for a coastal break without travelling far from the city. Kamogawa Sea World, local beaches, fishing spots, and the countryside of southern Boso are all within easy reach.
This property works especially well when you want everything in one place. You can enjoy natural hot spring water, private bathing, buffet or course dining, a summer pool, indoor play areas, craft experiences, spa treatments, and quiet time beside the ocean. The atmosphere feels relaxed and welcoming, whether you travel as a couple, with friends, or with young children.
Accommodation
You can choose from Japanese rooms, Western rooms, family rooms, forest-view rooms, maisonettes, and higher-floor Premium Floor accommodation. The standard Japanese rooms face the ocean and offer 10 to 12 tatami mats, with large windows that let you enjoy the sea while sitting or resting on the floor. Larger two-room Japanese layouts combine spaces such as a 12.5-tatami main room and a separate 6-tatami room, making them useful when you want more separation during a family or group stay.
The newer Oceanfront Western Rooms give you 38 square metres with two beds and a sofa bed. Terrace rooms place chairs and a table outside, allowing you to sit close to the horizon and ocean air. ReFa Rooms offer the same oceanfront space with a ReFa shower head and hair dryer. For more room, the 68-square-metre Oceanfront Western Suite includes four beds, a sofa bed, and a separate living area.
Not every room faces the sea. The Forest-View Twin Rooms give you 44 square metres with two beds, while the 87-square-metre Maisonette Rooms add a high ceiling and an upper sleeping level reached by a spiral staircase. These rooms suit you when space matters more than a direct ocean view.
The Premium Floor occupies the fifth, sixth, and seventh floors. The 41-square-metre Premium View Bath Room lets you see the Pacific through the room while bathing. The larger Premium View Bath Rooms offer between 44.4 and 49 square metres, two Simmons beds, and daybeds for added sleeping space. These rooms use a shoe-free wooden floor, which makes movement easier when you travel with a young child.
Rooms with private open-air baths include the 62-square-metre Premium Deluxe Western Room, the 82-square-metre Premium Luxury Suite, the 62- to 74-square-metre Premium Corner Suite, and the 41-square-metre Premium Japanese Room with beds. Corner suites use windows on two sides to create a broader Pacific panorama, while the Luxury Suite gives you the largest private-bath layout. The open-air room baths use Komeiseki artificial mineral water rather than natural Kamogawa Onsen water. Premium view baths also focus on private ocean-view bathing but do not use the natural spring supplied to the shared and reservable baths.
The Baby-Friendly Rooms provide a safer and easier setup when you travel with a baby or toddler. The 41-square-metre room includes a low king-size bed, futon space, a permanent baby cot, microwave, bottle-preparation equipment, rounded furniture, corner guards, toys, picture books, bath toys, a baby bath, child tableware, and an allergen-control tatami and cushioned floor. The 80-square-metre Baby-Friendly Deluxe Room adds two semi-double beds, a hammock, a child-height washbasin, a double wash area, and a bench-style bathtub that makes bathing with a small child easier.
All rooms are non-smoking and include free Wi-Fi, air conditioning, television, refrigerator, electric kettle, safe, air purifier, washlet toilet, hair dryer, yukata, towels, toothbrushes, shampoo, conditioner, body soap, skincare items, and baby body soap. Room equipment and bed types differ between categories, so you can choose according to your preferred view, sleeping style, and private-bath needs.
Dining
You can choose between the lively buffet at The Gunjo Restaurant and a slower course dinner at the semi-private dining venue MIRAI. Room dining is not available, so your meals take place in one of these dedicated restaurant spaces.
The Gunjo Restaurant faces the sea and serves dinner from 5:30 PM to 9:00 PM, with last orders at 8:30 PM. The buffet combines Japanese and Western dishes with seafood, meat, vegetables, rice dishes, noodles, and desserts. A live kitchen lets you enjoy food straight from the grill or fryer, with selections such as straw-fired bonito or Kazusa wagyu, freshly fried tempura, roast beef, local fish sashimi, Boso-style simmered kinmedai, sushi, and the hotel’s long-running beef curry. The exact menu changes with the season and ingredient supply.
Seasonal buffet themes add new dishes and desserts throughout the year. From July 4 to September 23, 2026, the dinner theme features tropical sweets and a children’s buffet, with mango, passion fruit, Boso pork, hand-rolled sushi, and summer dishes.
A dedicated children’s corner includes small hamburg steaks, vegetable dishes, curry, rice balls, and other easy-to-eat food. Baby food is prepared for different weaning stages, from around five months through the later stages of weaning. You can also find packaged baby food and vegetable purées prepared by the kitchen.
Breakfast runs from 7:00 AM to 9:30 AM, with last entry at 9:00 AM. You can begin with grilled fish and vegetables from the live kitchen, rice, bread, eggs, side dishes, salads, fruit, and desserts. One of the local highlights is magocha, a fisherman-style dish made by placing Kamogawa horse mackerel namerou over rice and adding tea or broth. You can also build your own morning ramen with your preferred toppings.
MIRAI offers a more private dining atmosphere, with semi-private rooms designed for two to eight people. The menu combines Japanese foundations with techniques and ideas from Western and Chinese cooking. Some dishes finish in the live kitchen before arriving at your table. Seasonal courses use fish from nearby ports, Chiba ingredients, kinmedai, abalone, wagyu, and other regional produce. Dinner runs from 6:00 PM to 9:00 PM, with last orders at 8:00 PM, and advance booking is recommended.
Allergy labels covering nine major ingredients appear at the buffet. For a meal at MIRAI, you should share your allergy details at least three days before arrival. Cakes and flower arrangements can also be prepared for anniversaries when requested at least three days in advance.
Onsen and Wellness
The main bathing area, Yuya Umi no Kairou, combines ocean views with several styles of bathing. You can move through the bathhouse as though walking along a corridor, passing indoor baths, outdoor baths, a reclining bath, a garden rock bath, a warm stone area, a sauna, a cold-water bath, and outdoor resting spaces.
The ocean-facing outdoor bath, reclining bath, and indoor panoramic bath use water from Kamogawa Onsen Nagisa no Yu. The spring is a sulfur-containing sodium-chloride and bicarbonate cold mineral spring, classified as hypotonic and weakly alkaline. Traditional bathing indications include relief from muscle pain, joint discomfort, stiff shoulders, bruises, and tiredness. Treat these as established onsen indications rather than medical treatment.
Other sections of the bathhouse use mineral stones. The Garden Bath and warm stone area use bakuhan stone, while the indoor Komeiseki Bath uses water passed through Komeiseki mineral stone. These baths add a different texture and atmosphere to the natural hot spring areas.
The large baths normally open from 11:00 AM to 1:00 AM and again from 5:00 AM to 9:30 AM. Some baths may open from 2:00 PM on water-replacement days. Shampoo, conditioner, body soap, skincare products, hair dryers, baby baths, baby chairs, baby soap, changing beds, and other family bathing items are prepared in the bathing areas.
Three reservable open-air baths offer a more private experience. Umi no Yu and Ten no Yu face the Pacific, giving you sea and horizon views during a 45-minute session. Bengara no Yu faces the pine forest and uses traditional red-brown bengara details in its design. You can reach its changing area by wheelchair.
The two sea-facing private baths are operating on a temporary schedule while equipment maintenance continues. They are due to pause again from 11:00 AM on July 1, 2026 until a new reopening date is announced. Bengara no Yu and the main public bath remain available. Advance booking is recommended for private bathing.
Spa MARUMU offers body and beauty treatments near the private bath area. You can also sit beside the fire feature on the garden terrace, where the movement of the flames and the sound of the sea create a comfortable place to end the evening.
Guests with Tattoos
If you have tattoos, you cannot use the shared public baths, reservable open-air baths, or outdoor pool. Tattoo cover seals do not change this rule.
A Premium Floor room with its own open-air bath or view bath gives you a private bathing option inside your accommodation. Please note that Premium Floor open-air baths use Komeiseki artificial mineral water, while the view baths do not use natural Kamogawa Onsen water.
Facilities
Kamogawa Grand Hotel includes the ocean-facing Gunjo buffet restaurant, semi-private dining at MIRAI, the Shirahae bar, a late-night ramen corner, a coffee lounge, the Yuya Umi no Kairou bathing complex, reservable open-air baths, Spa MARUMU, a garden terrace with a fire feature, an outdoor pool, karaoke rooms, banquet halls, meeting rooms, vending machines, a shop, a nursing room, and free Wi-Fi throughout the building. Coin-operated laundry is not available.
The eighth-floor Premium Lounge is reserved for you when you stay on the Premium Floor. From 2:00 PM to 5:30 PM, you can enjoy a 180-degree Pacific view with complimentary coffee, tea, soft drinks, spirits, dashi broth, and light snacks. You can use the lounge before your room becomes available once you receive the dedicated key card.
The free Wakuwaku Hiroba play area sits beside the central elevator on the second floor. It is designed mainly for children from around 18 months to four years old and includes a ball pool, play kitchen, climbing frame with slide, educational wall toys, a play tent, and padded flooring and walls. It opens from 8:00 AM to 10:00 AM and from 12:00 PM to 9:00 PM.
The first-floor nursing room gives you a private place for feeding and changing, with access available from 7:00 AM to 9:30 PM. You can request the key from the front desk. The hotel also provides smaller yukata, slippers, toothbrushes, bed guards, baby cots, and other family equipment, subject to availability.
The Suzuki Masajo Museum introduces you to the life and poetry of the haiku poet born into Yoshidaya, the former inn that preceded Kamogawa Grand Hotel. You can view handwritten poems, notebooks, writing tools, and personal items. The hotel also hosts a craft studio where you can create accessories from sea glass or make shell art with guidance from an instructor.
Free outdoor parking is available for around 100 cars on a first-come basis, with two paid standard-speed EV charging points. The building is not fully barrier-free, although wheelchairs can be borrowed and selected facilities support easier access.
Activities
You can walk directly from the garden toward the coast, collect shells, listen to the waves, or spend time watching the changing sea. Fishing equipment can be rented from the hotel, including a surf-casting rod, reel, weights, hooks, bait, bucket, fish grip, and other basic equipment.
During summer, the outdoor garden pool gives you separate swimming areas for adults and children. The main pool measures 25 by 8 metres and reaches a maximum depth of 1.7 metres. The triangular children’s pool is around 70 centimetres deep. In 2026, the pool opens from July 4 to September 23, from 9:00 AM to 5:00 PM. You can use it free of charge during your stay, including set hours before check-in and after check-out.
You can also book a sea-glass or shell craft session, sing in a karaoke room, visit the poetry museum, relax beside the garden fire, or let younger children play indoors. These choices make rainy days and quieter afternoons easy to enjoy without leaving the hotel.
Kamogawa Sea World is one of the main nearby attractions, while the wider area offers beaches, coastal roads, flower fields, fishing ports, and mountain scenery. Seasonal hotel events may include beach transfers, fireworks information, nature trips, and limited-time excursions.
Additional Features
Kamogawa Grand Hotel is located at 820 Hiroba, Kamogawa, Chiba Prefecture. Check-in begins at 3:00 PM, and check-out is at 10:00 AM unless your plan states different times. You can leave luggage and your car before check-in or after check-out.
JR Awa-Kamogawa Station is about ten minutes away on foot. Pick-up from the station operates between 9:00 AM and 6:00 PM with advance telephone booking. Return transport leaves the hotel at 9:00 AM, 10:10 AM, and 11:15 AM without a reservation. A new highway bus stop named Kamogawa Grand Hotel-mae opened directly in front of the property in May 2026, providing access on buses from Tokyo and Chiba.
All accommodation is non-smoking, with designated smoking spaces inside the property. Pets cannot stay inside the hotel. Cashless payment options include major credit cards, electronic money, transport IC cards, and selected QR payment services.
Interior renewal work is taking place in selected rooms on the sixth and seventh floors from June 10 to July 17, 2026. Work runs on weekdays from 8:30 AM to 5:00 PM, with louder work planned between 11:00 AM and 3:00 PM.
Kamogawa Grand Hotel suits you when you want a coastal resort with flexible room styles, natural hot spring bathing, seafood-focused dining, strong family support, and easy access from Tokyo. You can watch the morning light over the Pacific, spend the day beside the sea, and return to warm baths and a relaxed meal without leaving the property.
