Karuizawa Marriott Hotel 軽井沢マリオットホテル 輕井澤萬豪酒店

Karuizawa Marriott Hotel is a hot-spring resort located in the Naka-Karuizawa area of Karuizawa Town, Nagano Prefecture (4339 Nagakura, Karuizawa). From Tokyo Station, the Hokuriku Shinkansen takes about 70 minutes to reach Karuizawa Station, where a complimentary shuttle bus connects to the hotel. The seasonal timetable and route information are updated regularly by the hotel.

Opened on July 29, 2016, the property features 142 guest rooms across three accommodation types: the Main Wing, the North Wing, and dog-friendly cottages. The North Wing, opened in July 2017, is a two-story building with guest rooms offering open-air hot-spring baths and private gardens on the first floor, and view baths with hot-spring water on the second floor. The 10 dog-friendly cottages come with clear guidelines on accompanying pets, including the number of dogs allowed and required preparations (the entire property is smoke-free with designated smoking areas).

The hotel offers two types of hot springs. The Main Wing’s large indoor and open-air baths use water from Kose Onsen—an alkaline simple spring known for its gentle, skin-friendly qualities. North Wing guest rooms feature private baths supplied with Shiozawa Onsen water, valued for its excellent heat-retention properties. Bathing hours, tattoo cover rules, and other usage guidelines are clearly provided and may vary by date.

The main dining venue, Grill & Dining G, serves breakfast, dinner, lounge offerings, and in-room dining depending on the time of day. Menus highlight local Shinshu ingredients sourced from nearby farms and seasonal grill dishes—reflecting the culinary character of Karuizawa. Temporary closures or changes in hours are announced on the hotel’s official channels.

For wellness, the hotel houses “An Spa KARUIZAWA,” offering a range of body and facial treatments with Japanese-inspired elements. Business hours and treatment menus are available on the dedicated spa website. With the hot-spring baths, in-room onsen facilities, and spa located close to one another, guests can move between them with minimal effort.

Guest rooms feature warm wood tones, with layouts and views varying by building type. The North Wing comprises 56 Premier Rooms (Twin/King), each measuring 39 m²—first-floor rooms include open-air baths and private gardens, while second-floor rooms include hot-spring view baths. Dog-friendly cottages offer multiple room sizes, including types with their own hot-spring baths, along with pet amenities such as pads and cleaning supplies.

Access is centered around the complimentary shuttle bus connecting the hotel and Karuizawa Station’s South Exit. Seasonal schedules or ski-area routes may operate during certain periods. Seating is limited and first-come, first-served, and operations may change due to weather or traffic. Checking the latest timetable and boarding points (arrivals may occasionally use the North Exit during peak times) helps ensure a smooth journey.

Overall, Karuizawa Marriott Hotel brings together “easy station access via complimentary shuttle,” “a hot-spring experience with two distinct sources,” “dining focused on local ingredients,” and “dog-friendly cottage stays” across its Main Wing, North Wing, and cottage layout. Whether combining a weekend trip with visits to nearby attractions—such as Shiraito Falls, Kyukaruizawa Ginza, or the Karuizawa Prince Shopping Plaza—or spending most of the stay relaxing in a private onsen room, guests can tailor their experience to their preferred pace.