Overview

Stay at Karuizawa Asama Prince Hotel in Minami-Karuizawa, at an elevation of around 1,000 metres. The hotel looks directly toward Mount Asama, with open fairways and wooded hills extending across the landscape below.

The main hotel has only 30 rooms, giving you a quieter setting than the larger Prince properties near Karuizawa Station. Every room faces Mount Asama and includes a private balcony, allowing you to enjoy the view from morning until evening when the weather is clear.

You can spend the day playing golf, walking through the grounds, shopping near Karuizawa Station, or exploring the wider Karuizawa area. After returning, take the monorail to the natural hot spring, book an aromatherapy treatment, or enjoy dinner beneath the nine-metre windows of Dining Bloom.

Accommodation

Choose from Twin Rooms, Comfort Twin Rooms, and two large Suite Rooms. Every room has a 6.9-square-metre balcony facing Mount Asama, although clouds and changing weather can hide the mountain.

The Twin Room measures 30 square metres and sits on the first floor. Fourteen rooms are available, each with two 120-centimetre-wide beds and space for up to two people.

The room includes a separate washbasin, a large wardrobe, and a three-panel dressing mirror. A hand-operated coffee mill allows you to grind coffee inside your room before sitting on the balcony.

The Comfort Twin Room also measures 30 square metres and has two 120-centimetre-wide beds. All 14 rooms occupy the top floor, giving you a higher outlook across the golf course and surrounding highlands.

The room design takes inspiration from the kobushi magnolia, the official tree of Karuizawa. Natural colours and leaf-shaped details connect the interior with the landscape outside.

Two Suite Rooms provide 85 square metres of space. Each suite has a separate bedroom and living room, along with large windows on two sides and a private balcony.

Two main beds sit inside the bedroom, while two daybeds in the living room can be prepared for sleeping. This arrangement allows up to four people to stay together.

The suites include a spacious bathroom and separate shower. A two-door refrigerator, humidifying air purifier, and beer server add further convenience for a longer stay.

Every room has a private bathroom and toilet. Room baths use regular heated water rather than natural hot spring water, and the hotel does not have rooms with private onsen.

Standard equipment includes free Wi-Fi, a television, telephone, safe, refrigerator, electric kettle, air-cleaning climate unit, hair dryer, nightwear, towels, toiletries, and a washlet toilet. All rooms are non-smoking.

Dining

Dining Bloom serves breakfast, lunch, afternoon refreshments, and dinner against a direct view of Mount Asama. A nine-metre-high panoramic window fills the restaurant with natural light and keeps the mountain at the centre of your meal.

Breakfast is served as a Japanese and Western buffet from 7:00 a.m. to 10:00 a.m. You can choose rice, soup, fish, vegetables, bread, salads, fruit, hot dishes, and drinks.

Chefs prepare omelettes in front of you, while pizzas are baked in the restaurant’s own oven. Regional dishes connected to the home prefectures of the restaurant team may also appear.

Lunch and afternoon service run from 11:30 a.m. to 3:00 p.m. Choices change with the season and may include a set lunch, pasta, pizza, afternoon tea, desserts, and the signature ASAMA Burger.

Dinner runs from 5:30 p.m. to 9:00 p.m. You can choose Western courses, Japanese dishes, or items from the à la carte menu according to the date and your dining plan.

Menus focus on ingredients from Nagano, Gunma, and the wider Shinshu region. Current dishes may use Shinshu Premium Beef, Shinshu Golden Shamo chicken, Akagi beef, Gunma pork, local tomatoes, highland vegetables, and Shinshu mushrooms.

The Asama Gozen provides a Japanese alternative, presenting six seasonal dishes made with ingredients from Nagano and Gunma. Advance reservations are required for this menu.

A small bar on the second floor serves cocktails, whisky, wine, and other drinks in the evening. Advance reservations are required, and service depends on the current operating schedule.

Onsen and Wellness

Breeze in Plateau is the hotel’s separate natural hot spring building. A small monorail carries you from the hotel to the bathing facility in approximately one minute.

Large windows inside the bathing areas frame Mount Asama and the surrounding landscape. Both the men’s and women’s sides have indoor and open-air natural hot spring baths.

The water comes from the Karuizawa Asama Onsen source at approximately 40.4°C, with a natural flow of around 73.8 litres per minute.

It is classified as a neutral, hypotonic sodium bicarbonate and chloride spring. Traditional bathing indications include cuts, poor peripheral circulation, sensitivity to cold, dry skin, and symptoms associated with low mood.

The women’s area includes a mist sauna, a large powder room, indoor and outdoor baths, washing stations, lockers, and skincare products.

The men’s area includes a dry sauna, cold-water bath, indoor and outdoor onsen, washing stations, lockers, and grooming products.

Breeze in Plateau opens from 6:00 a.m. to 11:00 p.m., although operating hours can change with the season. Towels and bath towels are provided at the facility.

Children who still use diapers cannot enter the shared hot spring baths. The hotel does not have a reservable private onsen or an in-room natural hot spring bath.

Aromatherapy Salon PARTE offers treatments performed entirely by hand. You can choose body, facial, foot, hand, and head care according to the available menu.

The salon normally opens from 11:00 a.m. to 8:00 p.m., with final appointments beginning at 7:00 p.m. It usually closes on Tuesdays, although operating days can change with the season.

Guests with Tattoos

You can use the indoor baths, open-air baths, and sauna facilities when you have tattoos.

From July 2026, tattoos alone are no longer a reason to refuse access to the hotel’s hot spring facility. You do not need to cover your tattoos.

The same hygiene, conduct, and bathing rules apply to everyone using Breeze in Plateau.

Facilities

The hotel lobby and restaurant use wide windows to bring Mount Asama and the surrounding golf course into the interior. Seating areas give you space to meet, read, or enjoy the landscape between meals and activities.

A convenience shop opens from morning until late evening and sells drinks, snacks, alcohol, and local souvenirs. A separate boutique carries clothing and accessories during daytime hours.

Paid automatic washer-dryers are available on the lobby floor. The machines supply their own detergent and allow you to wash and dry clothing during a longer stay.

A private multipurpose room supports meetings, celebrations, and group meals. Its windows look toward the hotel garden, keeping the space connected to the outdoors.

The Smile Concierge service near the south exit of Karuizawa Station can hold your luggage before check-in or after check-out. This allows you to explore the station area without carrying large bags.

Free Wi-Fi is available in the rooms and main shared areas. The hotel is non-smoking, with a dedicated smoking room provided inside the building.

Free parking is available for 136 vehicles.

Activities

Walk the Forest Promenade through the hotel grounds. The complete route measures approximately 850 metres and leads to Negai no Oka, or Wishing Hill, where you can photograph Mount Asama and the hotel together.

Karuizawa Asama Golf Course lies directly beside the hotel. The 18-hole course specialises in two-person play, giving you more privacy and a steady pace without forming a larger group.

Larch and fir trees separate the fairways, while Mount Asama forms the background to many holes. Golf equipment and playing arrangements are available through the course according to the season.

Karuizawa Prince Hotel Ski Resort is around 25 minutes away by car. During winter, you can ski, snowboard, or use the snow-play areas before returning to the hotel’s hot spring.

The Karuizawa Prince Shopping Plaza stands beside Karuizawa Station and contains around 240 shops, restaurants, and cafés. The complimentary hotel shuttle makes it easy to combine shopping with your arrival or departure day.

For a volcanic landscape, visit Onioshidashi Park on the northern side of Mount Asama. Walking routes pass through dark lava formations created by the mountain’s historic eruptions.

You can also explore Kyu-Karuizawa, Karuizawa Lake Garden, Shiraito Falls, Harunire Terrace, local museums, forest paths, and cafés across the wider highland area.

Additional Features

Check-in begins at 3:00 p.m., and check-out is by 11:00 a.m.

Karuizawa Station is around 12 minutes away by taxi under normal traffic conditions. A complimentary shuttle runs between the hotel and the station’s south exit, with times changing according to the season.

The Hokuriku Shinkansen connects Tokyo Station with Karuizawa Station in around one hour on the fastest services.

By car, the hotel is approximately six minutes from Usui-Karuizawa Interchange under normal road conditions. Winter tyres or chains are important when snow or ice affects the roads.

Pets cannot stay inside the hotel. All accommodation is non-smoking, and a designated smoking room is available in the main building.