Romantic hotels in Nagano Prefecture, Japan

Here’s a polished and natural-sounding review you can use: Review: Twin Line Hotel Karuizawa is a very cozy and comfortable place to stay. The architecture is beautiful, modern, and thoughtfully designed, creating a warm and relaxing atmosphere. The hotel is extremely clean, and everything feels well maintained. The breakfast was very good, with a nice variety and great quality. I especially loved that the hotel offers free coffee, tea, and many other drinks and snacks ..such a thoughtful touch that makes the stay even more enjoyable. The hotel crew were very friendly, polite, and helpful, making us feel truly welcome. Overall, a lovely hotel with great service, comfort, and attention to detail. Highly recommended.

The price is not that expensive, so we didn’t expect that much. However, everything was really great. Large and clean public onsen. The breakfast was really really brilliant - variety of food and the taste is very yummy. Only the con is a bit far from the city but it’s not our concern. Really impressed. The hotel also provides the drinking station everywhere. Free drinks and snack at the lounge too.

A very satisfying stay with an excellent onsen and delicious breakfast. This is always my first choice when visiting Matsumoto. The hotel is conveniently located—just a 5-minute walk from the train station and 3 minutes from the bus station. The traditional Japanese tatami-style rooms are spotlessly clean and comfortable. Highly recommended.

Really beautiful resort, love the free rental Onsen it’s really nice, if you don’t need room cleaning service you can get 2000yen coupon for souvenir shop. It’s close to the outlet only 10mins driving distance. There is a 7 eleven close to the hotel but need to be aware that the convenience store will be closed at 2300.

It was a great experience to stay in this hotel! Very nice view and staff are very polite and willing to answer many questions. Outdoor area is very big that we could take bicycles with kids. Also there are kids outdoor playground that can spend whole day there. 

The hotel is located close to the Matsumoto castle, with quiet and decent shops around. Also, there are some lanes have shops with characters. The big bath in the hotel is clean and lovely. The hotel in genwral has a feel of vintage with in very good condition. The room is spacious with beautiful mountain view as a background. Breakfast is good in quality with both western and Japanese style food.

One of the best hotels I’ve stayed in. We visited in early November 2025 during the autumn season, and the beautiful foliage added such a romantic touch to the surroundings. I loved the modern interior, the comfortable bed, and the overall room layout. The hotel looks incredibly romantic at night too, especially with the reflections on the pond. The outdoor onsen was a highlight. It felt serene at night, and the maple trees lit up in the evening made it absolutely scenic. The onsen is located in a separate building, so you do have to walk through the cold, but it wasn’t an issue as the hotel provides thicker robes. If I had to nitpick, the indoor slippers weren’t the most comfortable. We drove during our stay, so getting to nearby attractions was easy. There’s a large supermarket and a pharmacy about 5–10 minutes away, which was very convenient — we didn’t even need to visit any convenience stores. This hotel impressed me so much that it made me look up where else Hotel Indigo has branches in Japan!